diff --git a/crates/aiken-lang/src/expr.rs b/crates/aiken-lang/src/expr.rs
index 05962a02..cf66cb82 100644
--- a/crates/aiken-lang/src/expr.rs
+++ b/crates/aiken-lang/src/expr.rs
@@ -15,7 +15,7 @@ use crate::{
 
 #[derive(Debug, Clone, PartialEq)]
 pub enum TypedExpr {
-    Int {
+    UInt {
         location: Span,
         tipo: Arc<Type>,
         value: String,
@@ -170,7 +170,7 @@ impl TypedExpr {
             Self::Var { constructor, .. } => constructor.tipo.clone(),
             Self::Trace { then, .. } => then.tipo(),
             Self::Fn { tipo, .. }
-            | Self::Int { tipo, .. }
+            | Self::UInt { tipo, .. }
             | Self::ErrorTerm { tipo, .. }
             | Self::When { tipo, .. }
             | Self::List { tipo, .. }
@@ -195,7 +195,7 @@ impl TypedExpr {
     pub fn is_literal(&self) -> bool {
         matches!(
             self,
-            Self::Int { .. }
+            Self::UInt { .. }
                 | Self::List { .. }
                 | Self::Tuple { .. }
                 | Self::String { .. }
@@ -211,7 +211,7 @@ impl TypedExpr {
     pub fn definition_location(&self) -> Option<DefinitionLocation<'_>> {
         match self {
             TypedExpr::Fn { .. }
-            | TypedExpr::Int { .. }
+            | TypedExpr::UInt { .. }
             | TypedExpr::Trace { .. }
             | TypedExpr::List { .. }
             | TypedExpr::Call { .. }
@@ -251,7 +251,7 @@ impl TypedExpr {
     pub fn type_defining_location(&self) -> Span {
         match self {
             Self::Fn { location, .. }
-            | Self::Int { location, .. }
+            | Self::UInt { location, .. }
             | Self::Var { location, .. }
             | Self::Trace { location, .. }
             | Self::ErrorTerm { location, .. }
@@ -286,7 +286,7 @@ impl TypedExpr {
     pub fn location(&self) -> Span {
         match self {
             Self::Fn { location, .. }
-            | Self::Int { location, .. }
+            | Self::UInt { location, .. }
             | Self::Trace { location, .. }
             | Self::Var { location, .. }
             | Self::ErrorTerm { location, .. }
@@ -319,7 +319,7 @@ impl TypedExpr {
         match self {
             TypedExpr::ErrorTerm { .. }
             | TypedExpr::Var { .. }
-            | TypedExpr::Int { .. }
+            | TypedExpr::UInt { .. }
             | TypedExpr::String { .. }
             | TypedExpr::ByteArray { .. }
             | TypedExpr::ModuleSelect { .. } => Some(self),
@@ -409,7 +409,7 @@ pub enum FnStyle {
 
 #[derive(Debug, Clone, PartialEq)]
 pub enum UntypedExpr {
-    Int {
+    UInt {
         location: Span,
         value: String,
         base: Base,
@@ -619,7 +619,7 @@ impl UntypedExpr {
             Self::TraceIfFalse { location, .. }
             | Self::Fn { location, .. }
             | Self::Var { location, .. }
-            | Self::Int { location, .. }
+            | Self::UInt { location, .. }
             | Self::ErrorTerm { location, .. }
             | Self::When { location, .. }
             | Self::Call { location, .. }
@@ -669,7 +669,7 @@ impl UntypedExpr {
     pub fn is_simple_constant(&self) -> bool {
         matches!(
             self,
-            Self::String { .. } | Self::Int { .. } | Self::ByteArray { .. }
+            Self::String { .. } | Self::UInt { .. } | Self::ByteArray { .. }
         )
     }
 }
diff --git a/crates/aiken-lang/src/format.rs b/crates/aiken-lang/src/format.rs
index e345875c..0d5f3e31 100644
--- a/crates/aiken-lang/src/format.rs
+++ b/crates/aiken-lang/src/format.rs
@@ -702,6 +702,10 @@ impl<'comments> Formatter<'comments> {
     }
 
     pub fn int<'a>(&mut self, s: &'a str, base: &Base) -> Document<'a> {
+        unimplemented!()
+    }
+
+    pub fn uint<'a>(&mut self, s: &'a str, base: &Base) -> Document<'a> {
         match base {
             Base::Decimal { numeric_underscore } if *numeric_underscore => {
                 let s = s
@@ -755,7 +759,7 @@ impl<'comments> Formatter<'comments> {
                 one_liner,
             } => self.pipeline(expressions, *one_liner),
 
-            UntypedExpr::Int { value, base, .. } => self.int(value, base),
+            UntypedExpr::UInt { value, base, .. } => self.uint(value, base),
 
             UntypedExpr::String { value, .. } => self.string(value),
 
diff --git a/crates/aiken-lang/src/gen_uplc.rs b/crates/aiken-lang/src/gen_uplc.rs
index 59b7f84b..6de17042 100644
--- a/crates/aiken-lang/src/gen_uplc.rs
+++ b/crates/aiken-lang/src/gen_uplc.rs
@@ -221,7 +221,7 @@ impl<'a> CodeGenerator<'a> {
 
     pub(crate) fn build(&mut self, body: &TypedExpr, ir_stack: &mut AirStack) {
         match body {
-            TypedExpr::Int { value, .. } => ir_stack.integer(value.to_string()),
+            TypedExpr::UInt { value, .. } => ir_stack.integer(value.to_string()),
             TypedExpr::String { value, .. } => ir_stack.string(value.to_string()),
             TypedExpr::ByteArray { bytes, .. } => ir_stack.byte_array(bytes.to_vec()),
             TypedExpr::Pipeline { expressions, .. } | TypedExpr::Sequence { expressions, .. } => {
diff --git a/crates/aiken-lang/src/parser/definition/constant.rs b/crates/aiken-lang/src/parser/definition/constant.rs
index 1e2629ed..834449d9 100644
--- a/crates/aiken-lang/src/parser/definition/constant.rs
+++ b/crates/aiken-lang/src/parser/definition/constant.rs
@@ -2,9 +2,7 @@ use chumsky::prelude::*;
 
 use crate::{
     ast,
-    parser::{
-        annotation, error::ParseError, literal::bytearray::parser as bytearray, token::Token, utils,
-    },
+    parser::{annotation, error::ParseError, literal::bytearray, token::Token, utils},
 };
 
 pub fn parser() -> impl Parser<Token, ast::UntypedDefinition, Error = ParseError> {
diff --git a/crates/aiken-lang/src/parser/expr/bytearray.rs b/crates/aiken-lang/src/parser/expr/bytearray.rs
index 2829b8dc..32536880 100644
--- a/crates/aiken-lang/src/parser/expr/bytearray.rs
+++ b/crates/aiken-lang/src/parser/expr/bytearray.rs
@@ -1,8 +1,6 @@
 use chumsky::prelude::*;
 
-use crate::parser::{
-    error::ParseError, expr::UntypedExpr, literal::bytearray::parser as bytearray, token::Token,
-};
+use crate::parser::{error::ParseError, expr::UntypedExpr, literal::bytearray, token::Token};
 
 pub fn parser() -> impl Parser<Token, UntypedExpr, Error = ParseError> {
     bytearray(|bytes, preferred_format, location| UntypedExpr::ByteArray {
diff --git a/crates/aiken-lang/src/parser/expr/int.rs b/crates/aiken-lang/src/parser/expr/int.rs
index 5ed56f13..47393058 100644
--- a/crates/aiken-lang/src/parser/expr/int.rs
+++ b/crates/aiken-lang/src/parser/expr/int.rs
@@ -2,11 +2,11 @@ use chumsky::prelude::*;
 
 use crate::{
     expr::UntypedExpr,
-    parser::{error::ParseError, literal::int::parser as int, token::Token},
+    parser::{error::ParseError, literal::uint, token::Token},
 };
 
 pub fn parser() -> impl Parser<Token, UntypedExpr, Error = ParseError> {
-    int().map_with_span(|(value, base), span| UntypedExpr::Int {
+    uint().map_with_span(|(value, base), span| UntypedExpr::UInt {
         location: span,
         value,
         base,
diff --git a/crates/aiken-lang/src/parser/expr/snapshots/anonymous_function_basic.snap b/crates/aiken-lang/src/parser/expr/snapshots/anonymous_function_basic.snap
index da64b10f..d703169f 100644
--- a/crates/aiken-lang/src/parser/expr/snapshots/anonymous_function_basic.snap
+++ b/crates/aiken-lang/src/parser/expr/snapshots/anonymous_function_basic.snap
@@ -32,7 +32,7 @@ Fn {
             location: 21..22,
             name: "a",
         },
-        right: Int {
+        right: UInt {
             location: 25..26,
             value: "1",
             base: Decimal {
diff --git a/crates/aiken-lang/src/parser/expr/snapshots/block_basic.snap b/crates/aiken-lang/src/parser/expr/snapshots/block_basic.snap
index 7d07f718..437ab513 100644
--- a/crates/aiken-lang/src/parser/expr/snapshots/block_basic.snap
+++ b/crates/aiken-lang/src/parser/expr/snapshots/block_basic.snap
@@ -9,7 +9,7 @@ Assignment {
         expressions: [
             Assignment {
                 location: 12..21,
-                value: Int {
+                value: UInt {
                     location: 20..21,
                     value: "4",
                     base: Decimal {
@@ -30,7 +30,7 @@ Assignment {
                     location: 25..26,
                     name: "x",
                 },
-                right: Int {
+                right: UInt {
                     location: 29..30,
                     value: "5",
                     base: Decimal {
diff --git a/crates/aiken-lang/src/parser/expr/snapshots/function_invoke.snap b/crates/aiken-lang/src/parser/expr/snapshots/function_invoke.snap
index 411a7f4f..294b34a8 100644
--- a/crates/aiken-lang/src/parser/expr/snapshots/function_invoke.snap
+++ b/crates/aiken-lang/src/parser/expr/snapshots/function_invoke.snap
@@ -12,7 +12,7 @@ Sequence {
                     CallArg {
                         label: None,
                         location: 16..17,
-                        value: Int {
+                        value: UInt {
                             location: 16..17,
                             value: "3",
                             base: Decimal {
@@ -124,21 +124,21 @@ Sequence {
                     value: List {
                         location: 77..88,
                         elements: [
-                            Int {
+                            UInt {
                                 location: 79..80,
                                 value: "1",
                                 base: Decimal {
                                     numeric_underscore: false,
                                 },
                             },
-                            Int {
+                            UInt {
                                 location: 82..83,
                                 value: "2",
                                 base: Decimal {
                                     numeric_underscore: false,
                                 },
                             },
-                            Int {
+                            UInt {
                                 location: 85..86,
                                 value: "3",
                                 base: Decimal {
diff --git a/crates/aiken-lang/src/parser/expr/snapshots/if_else_basic.snap b/crates/aiken-lang/src/parser/expr/snapshots/if_else_basic.snap
index 32cbd034..4493776d 100644
--- a/crates/aiken-lang/src/parser/expr/snapshots/if_else_basic.snap
+++ b/crates/aiken-lang/src/parser/expr/snapshots/if_else_basic.snap
@@ -13,14 +13,14 @@ If {
             body: BinOp {
                 location: 12..17,
                 name: AddInt,
-                left: Int {
+                left: UInt {
                     location: 12..13,
                     value: "1",
                     base: Decimal {
                         numeric_underscore: false,
                     },
                 },
-                right: Int {
+                right: UInt {
                     location: 16..17,
                     value: "1",
                     base: Decimal {
@@ -38,7 +38,7 @@ If {
                     location: 28..29,
                     name: "a",
                 },
-                right: Int {
+                right: UInt {
                     location: 32..33,
                     value: "1",
                     base: Decimal {
@@ -46,7 +46,7 @@ If {
                     },
                 },
             },
-            body: Int {
+            body: UInt {
                 location: 38..39,
                 value: "3",
                 base: Decimal {
@@ -56,7 +56,7 @@ If {
             location: 28..41,
         },
     ],
-    final_else: Int {
+    final_else: UInt {
         location: 51..52,
         value: "4",
         base: Decimal {
diff --git a/crates/aiken-lang/src/parser/expr/snapshots/int_hex_bytes.snap b/crates/aiken-lang/src/parser/expr/snapshots/int_hex_bytes.snap
index 56ab77ec..8ccc01ef 100644
--- a/crates/aiken-lang/src/parser/expr/snapshots/int_hex_bytes.snap
+++ b/crates/aiken-lang/src/parser/expr/snapshots/int_hex_bytes.snap
@@ -2,7 +2,7 @@
 source: crates/aiken-lang/src/parser/expr/int.rs
 description: "Code:\n\n0x01"
 ---
-Int {
+UInt {
     location: 0..4,
     value: "1",
     base: Hexadecimal,
diff --git a/crates/aiken-lang/src/parser/expr/snapshots/int_list.snap b/crates/aiken-lang/src/parser/expr/snapshots/int_list.snap
index a2040224..683a88aa 100644
--- a/crates/aiken-lang/src/parser/expr/snapshots/int_list.snap
+++ b/crates/aiken-lang/src/parser/expr/snapshots/int_list.snap
@@ -5,21 +5,21 @@ description: "Code:\n\n[1, 2, 3]"
 List {
     location: 0..9,
     elements: [
-        Int {
+        UInt {
             location: 1..2,
             value: "1",
             base: Decimal {
                 numeric_underscore: false,
             },
         },
-        Int {
+        UInt {
             location: 4..5,
             value: "2",
             base: Decimal {
                 numeric_underscore: false,
             },
         },
-        Int {
+        UInt {
             location: 7..8,
             value: "3",
             base: Decimal {
diff --git a/crates/aiken-lang/src/parser/expr/snapshots/int_literal.snap b/crates/aiken-lang/src/parser/expr/snapshots/int_literal.snap
index da7cb54b..4ff4eac3 100644
--- a/crates/aiken-lang/src/parser/expr/snapshots/int_literal.snap
+++ b/crates/aiken-lang/src/parser/expr/snapshots/int_literal.snap
@@ -2,7 +2,7 @@
 source: crates/aiken-lang/src/parser/expr/int.rs
 description: "Code:\n\n1"
 ---
-Int {
+UInt {
     location: 0..1,
     value: "1",
     base: Decimal {
diff --git a/crates/aiken-lang/src/parser/expr/snapshots/int_negative.snap b/crates/aiken-lang/src/parser/expr/snapshots/int_negative.snap
index fcf40a1d..dc2e4880 100644
--- a/crates/aiken-lang/src/parser/expr/snapshots/int_negative.snap
+++ b/crates/aiken-lang/src/parser/expr/snapshots/int_negative.snap
@@ -5,7 +5,7 @@ description: "Code:\n\n-1"
 UnOp {
     op: Negate,
     location: 0..2,
-    value: Int {
+    value: UInt {
         location: 1..2,
         value: "1",
         base: Decimal {
diff --git a/crates/aiken-lang/src/parser/expr/snapshots/int_numeric_underscore.snap b/crates/aiken-lang/src/parser/expr/snapshots/int_numeric_underscore.snap
index 566e732e..5f1db19c 100644
--- a/crates/aiken-lang/src/parser/expr/snapshots/int_numeric_underscore.snap
+++ b/crates/aiken-lang/src/parser/expr/snapshots/int_numeric_underscore.snap
@@ -7,7 +7,7 @@ Sequence {
     expressions: [
         Assignment {
             location: 4..21,
-            value: Int {
+            value: UInt {
                 location: 12..21,
                 value: "1234567",
                 base: Decimal {
@@ -23,7 +23,7 @@ Sequence {
         },
         Assignment {
             location: 24..41,
-            value: Int {
+            value: UInt {
                 location: 32..41,
                 value: "1000000",
                 base: Decimal {
@@ -42,7 +42,7 @@ Sequence {
             value: UnOp {
                 op: Negate,
                 location: 52..59,
-                value: Int {
+                value: UInt {
                     location: 53..59,
                     value: "10000",
                     base: Decimal {
diff --git a/crates/aiken-lang/src/parser/expr/snapshots/let_bindings.snap b/crates/aiken-lang/src/parser/expr/snapshots/let_bindings.snap
index 71e556c8..ef8eef02 100644
--- a/crates/aiken-lang/src/parser/expr/snapshots/let_bindings.snap
+++ b/crates/aiken-lang/src/parser/expr/snapshots/let_bindings.snap
@@ -7,14 +7,14 @@ Assignment {
     value: List {
         location: 12..23,
         elements: [
-            Int {
+            UInt {
                 location: 14..15,
                 value: "1",
                 base: Decimal {
                     numeric_underscore: false,
                 },
             },
-            Int {
+            UInt {
                 location: 17..18,
                 value: "2",
                 base: Decimal {
diff --git a/crates/aiken-lang/src/parser/expr/snapshots/list_spread.snap b/crates/aiken-lang/src/parser/expr/snapshots/list_spread.snap
index 2009bc42..c90e69bc 100644
--- a/crates/aiken-lang/src/parser/expr/snapshots/list_spread.snap
+++ b/crates/aiken-lang/src/parser/expr/snapshots/list_spread.snap
@@ -5,14 +5,14 @@ description: "Code:\n\n[1, 2, ..[]]"
 List {
     location: 0..12,
     elements: [
-        Int {
+        UInt {
             location: 1..2,
             value: "1",
             base: Decimal {
                 numeric_underscore: false,
             },
         },
-        Int {
+        UInt {
             location: 4..5,
             value: "2",
             base: Decimal {
diff --git a/crates/aiken-lang/src/parser/expr/snapshots/parse_tuple.snap b/crates/aiken-lang/src/parser/expr/snapshots/parse_tuple.snap
index 857616c8..4fa94b9e 100644
--- a/crates/aiken-lang/src/parser/expr/snapshots/parse_tuple.snap
+++ b/crates/aiken-lang/src/parser/expr/snapshots/parse_tuple.snap
@@ -10,28 +10,28 @@ Sequence {
             value: Tuple {
                 location: 12..24,
                 elems: [
-                    Int {
+                    UInt {
                         location: 13..14,
                         value: "1",
                         base: Decimal {
                             numeric_underscore: false,
                         },
                     },
-                    Int {
+                    UInt {
                         location: 16..17,
                         value: "2",
                         base: Decimal {
                             numeric_underscore: false,
                         },
                     },
-                    Int {
+                    UInt {
                         location: 19..20,
                         value: "3",
                         base: Decimal {
                             numeric_underscore: false,
                         },
                     },
-                    Int {
+                    UInt {
                         location: 22..23,
                         value: "4",
                         base: Decimal {
diff --git a/crates/aiken-lang/src/parser/expr/snapshots/parse_tuple2.snap b/crates/aiken-lang/src/parser/expr/snapshots/parse_tuple2.snap
index 634d6184..ede9ec5a 100644
--- a/crates/aiken-lang/src/parser/expr/snapshots/parse_tuple2.snap
+++ b/crates/aiken-lang/src/parser/expr/snapshots/parse_tuple2.snap
@@ -12,7 +12,7 @@ Sequence {
                     CallArg {
                         label: None,
                         location: 12..14,
-                        value: Int {
+                        value: UInt {
                             location: 12..14,
                             value: "14",
                             base: Decimal {
@@ -41,7 +41,7 @@ Sequence {
                     location: 17..18,
                     name: "a",
                 },
-                Int {
+                UInt {
                     location: 20..22,
                     value: "42",
                     base: Decimal {
diff --git a/crates/aiken-lang/src/parser/expr/snapshots/pipeline.snap b/crates/aiken-lang/src/parser/expr/snapshots/pipeline.snap
index f98b6a8c..e033386b 100644
--- a/crates/aiken-lang/src/parser/expr/snapshots/pipeline.snap
+++ b/crates/aiken-lang/src/parser/expr/snapshots/pipeline.snap
@@ -11,7 +11,7 @@ PipeLine {
                 location: 0..1,
                 name: "a",
             },
-            right: Int {
+            right: UInt {
                 location: 4..5,
                 value: "2",
                 base: Decimal {
diff --git a/crates/aiken-lang/src/parser/expr/snapshots/plus_binop.snap b/crates/aiken-lang/src/parser/expr/snapshots/plus_binop.snap
index 397597ec..4510b839 100644
--- a/crates/aiken-lang/src/parser/expr/snapshots/plus_binop.snap
+++ b/crates/aiken-lang/src/parser/expr/snapshots/plus_binop.snap
@@ -9,7 +9,7 @@ BinOp {
         location: 0..1,
         name: "a",
     },
-    right: Int {
+    right: UInt {
         location: 4..5,
         value: "1",
         base: Decimal {
diff --git a/crates/aiken-lang/src/parser/expr/snapshots/record_create_labeled.snap b/crates/aiken-lang/src/parser/expr/snapshots/record_create_labeled.snap
index 13c2c433..d6274e00 100644
--- a/crates/aiken-lang/src/parser/expr/snapshots/record_create_labeled.snap
+++ b/crates/aiken-lang/src/parser/expr/snapshots/record_create_labeled.snap
@@ -36,7 +36,7 @@ Call {
                 "thing",
             ),
             location: 27..35,
-            value: Int {
+            value: UInt {
                 location: 34..35,
                 value: "2",
                 base: Decimal {
diff --git a/crates/aiken-lang/src/parser/expr/snapshots/record_create_labeled_with_field_access.snap b/crates/aiken-lang/src/parser/expr/snapshots/record_create_labeled_with_field_access.snap
index f1f46e9b..f4738e38 100644
--- a/crates/aiken-lang/src/parser/expr/snapshots/record_create_labeled_with_field_access.snap
+++ b/crates/aiken-lang/src/parser/expr/snapshots/record_create_labeled_with_field_access.snap
@@ -36,7 +36,7 @@ Call {
                 "thing",
             ),
             location: 39..47,
-            value: Int {
+            value: UInt {
                 location: 46..47,
                 value: "2",
                 base: Decimal {
diff --git a/crates/aiken-lang/src/parser/expr/snapshots/record_create_unlabeled.snap b/crates/aiken-lang/src/parser/expr/snapshots/record_create_unlabeled.snap
index 2f9f629c..b14a4a00 100644
--- a/crates/aiken-lang/src/parser/expr/snapshots/record_create_unlabeled.snap
+++ b/crates/aiken-lang/src/parser/expr/snapshots/record_create_unlabeled.snap
@@ -7,7 +7,7 @@ Call {
         CallArg {
             label: None,
             location: 18..19,
-            value: Int {
+            value: UInt {
                 location: 18..19,
                 value: "1",
                 base: Decimal {
diff --git a/crates/aiken-lang/src/parser/expr/string.rs b/crates/aiken-lang/src/parser/expr/string.rs
index ed8f4f75..01f24a48 100644
--- a/crates/aiken-lang/src/parser/expr/string.rs
+++ b/crates/aiken-lang/src/parser/expr/string.rs
@@ -2,10 +2,7 @@ use chumsky::prelude::*;
 
 use crate::{
     expr::UntypedExpr,
-    parser::{
-        error::ParseError, literal::bytearray::utf8_string, literal::string::parser as string,
-        token::Token,
-    },
+    parser::{error::ParseError, literal::string, literal::utf8_string, token::Token},
 };
 
 pub fn parser() -> impl Parser<Token, UntypedExpr, Error = ParseError> {
diff --git a/crates/aiken-lang/src/parser/expr/when/snapshots/when_basic.snap b/crates/aiken-lang/src/parser/expr/when/snapshots/when_basic.snap
index 7d5056b6..53a3665a 100644
--- a/crates/aiken-lang/src/parser/expr/when/snapshots/when_basic.snap
+++ b/crates/aiken-lang/src/parser/expr/when/snapshots/when_basic.snap
@@ -39,7 +39,7 @@ When {
                     ),
                 },
             ),
-            then: Int {
+            then: UInt {
                 location: 28..29,
                 value: "3",
                 base: Decimal {
@@ -78,7 +78,7 @@ When {
                 expressions: [
                     Assignment {
                         location: 51..66,
-                        value: Int {
+                        value: UInt {
                             location: 65..66,
                             value: "5",
                             base: Decimal {
@@ -111,7 +111,7 @@ When {
                 },
             ],
             guard: None,
-            then: Int {
+            then: UInt {
                 location: 90..91,
                 value: "9",
                 base: Decimal {
@@ -128,7 +128,7 @@ When {
                 },
             ],
             guard: None,
-            then: Int {
+            then: UInt {
                 location: 99..100,
                 value: "4",
                 base: Decimal {
diff --git a/crates/aiken-lang/src/parser/literal/mod.rs b/crates/aiken-lang/src/parser/literal/mod.rs
index 6a67a32e..cc5dd8c6 100644
--- a/crates/aiken-lang/src/parser/literal/mod.rs
+++ b/crates/aiken-lang/src/parser/literal/mod.rs
@@ -1,3 +1,7 @@
-pub(crate) mod bytearray;
-pub(crate) mod int;
-pub(crate) mod string;
+mod bytearray;
+mod string;
+mod uint;
+
+pub use bytearray::{array_of_bytes, hex_string, parser as bytearray, utf8_string};
+pub use string::parser as string;
+pub use uint::parser as uint;
diff --git a/crates/aiken-lang/src/parser/literal/int.rs b/crates/aiken-lang/src/parser/literal/uint.rs
similarity index 100%
rename from crates/aiken-lang/src/parser/literal/int.rs
rename to crates/aiken-lang/src/parser/literal/uint.rs
diff --git a/crates/aiken-lang/src/snapshots/function_ambiguous_sequence.snap b/crates/aiken-lang/src/snapshots/function_ambiguous_sequence.snap
index 0f6292b0..08fec703 100644
--- a/crates/aiken-lang/src/snapshots/function_ambiguous_sequence.snap
+++ b/crates/aiken-lang/src/snapshots/function_ambiguous_sequence.snap
@@ -26,7 +26,7 @@ Module {
                             kind: Let,
                             annotation: None,
                         },
-                        Int {
+                        UInt {
                             location: 30..32,
                             value: "40",
                             base: Decimal {
@@ -64,7 +64,7 @@ Module {
                             kind: Let,
                             annotation: None,
                         },
-                        Int {
+                        UInt {
                             location: 67..69,
                             value: "40",
                             base: Decimal {
@@ -91,14 +91,14 @@ Module {
                     value: BinOp {
                         location: 98..102,
                         name: AddInt,
-                        left: Int {
+                        left: UInt {
                             location: 98..100,
                             value: "40",
                             base: Decimal {
                                 numeric_underscore: false,
                             },
                         },
-                        right: Int {
+                        right: UInt {
                             location: 101..102,
                             value: "2",
                             base: Decimal {
@@ -136,7 +136,7 @@ Module {
                                     CallArg {
                                         label: None,
                                         location: 134..136,
-                                        value: Int {
+                                        value: UInt {
                                             location: 134..136,
                                             value: "42",
                                             base: Decimal {
@@ -168,7 +168,7 @@ Module {
                                     location: 141..142,
                                     name: "a",
                                 },
-                                right: Int {
+                                right: UInt {
                                     location: 145..147,
                                     value: "14",
                                     base: Decimal {
@@ -176,7 +176,7 @@ Module {
                                     },
                                 },
                             },
-                            right: Int {
+                            right: UInt {
                                 location: 151..153,
                                 value: "42",
                                 base: Decimal {
diff --git a/crates/aiken-lang/src/tipo/expr.rs b/crates/aiken-lang/src/tipo/expr.rs
index f4a39b06..1a712230 100644
--- a/crates/aiken-lang/src/tipo/expr.rs
+++ b/crates/aiken-lang/src/tipo/expr.rs
@@ -199,9 +199,9 @@ impl<'a, 'b> ExprTyper<'a, 'b> {
 
             UntypedExpr::Var { location, name, .. } => self.infer_var(name, location),
 
-            UntypedExpr::Int {
+            UntypedExpr::UInt {
                 location, value, ..
-            } => Ok(self.infer_int(value, location)),
+            } => Ok(self.infer_uint(value, location)),
 
             UntypedExpr::Sequence {
                 expressions,
@@ -1520,8 +1520,8 @@ impl<'a, 'b> ExprTyper<'a, 'b> {
         Ok((args, body))
     }
 
-    fn infer_int(&mut self, value: String, location: Span) -> TypedExpr {
-        TypedExpr::Int {
+    fn infer_uint(&mut self, value: String, location: Span) -> TypedExpr {
+        TypedExpr::UInt {
             location,
             value,
             tipo: int(),
@@ -1943,7 +1943,7 @@ fn assert_no_assignment(expr: &UntypedExpr) -> Result<(), Error> {
         | UntypedExpr::ErrorTerm { .. }
         | UntypedExpr::FieldAccess { .. }
         | UntypedExpr::If { .. }
-        | UntypedExpr::Int { .. }
+        | UntypedExpr::UInt { .. }
         | UntypedExpr::List { .. }
         | UntypedExpr::PipeLine { .. }
         | UntypedExpr::RecordUpdate { .. }