diff --git a/Cargo.lock b/Cargo.lock
index 925f48cf..9ec40a63 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -48,7 +48,7 @@ dependencies = [
 
 [[package]]
 name = "aiken"
-version = "0.0.20"
+version = "0.0.21"
 dependencies = [
  "aiken-lang",
  "anyhow",
@@ -304,7 +304,7 @@ dependencies = [
 
 [[package]]
 name = "flat-rs"
-version = "0.0.20"
+version = "0.0.21"
 dependencies = [
  "anyhow",
  "proptest",
@@ -1142,7 +1142,7 @@ checksum = "c0edd1e5b14653f783770bce4a4dabb4a5108a5370a5f5d8cfe8710c361f6c8b"
 
 [[package]]
 name = "uplc"
-version = "0.0.20"
+version = "0.0.21"
 dependencies = [
  "anyhow",
  "cryptoxide",
diff --git a/crates/cli/Cargo.toml b/crates/cli/Cargo.toml
index c68cc541..9d95fe93 100644
--- a/crates/cli/Cargo.toml
+++ b/crates/cli/Cargo.toml
@@ -1,7 +1,7 @@
 [package]
 name = "aiken"
 description = "Cardano smart contract language and toolchain"
-version = "0.0.20"
+version = "0.0.21"
 edition = "2021"
 repository = "https://github.com/txpipe/aiken"
 homepage = "https://github.com/txpipe/aiken"
@@ -19,7 +19,7 @@ pallas-primitives = "0.14.0-alpha.3"
 pallas-traverse = "0.14.0-alpha.3"
 serde = { version = "1.0.144", features = ["derive"] }
 serde_json = "1.0.85"
-uplc = { path = '../uplc', version = "0.0.20" }
+uplc = { path = '../uplc', version = "0.0.21" }
 aiken-lang = { path = "../lang", version = "0.0.20" }
 toml = "0.5.9"
 walkdir = "2.3.2"
diff --git a/crates/flat/Cargo.toml b/crates/flat/Cargo.toml
index 8e728209..529d87a8 100644
--- a/crates/flat/Cargo.toml
+++ b/crates/flat/Cargo.toml
@@ -1,7 +1,7 @@
 [package]
 name = "flat-rs"
 description = "Flat codec"
-version = "0.0.20"
+version = "0.0.21"
 edition = "2021"
 repository = "https://github.com/txpipe/aiken/crates/flat"
 homepage = "https://github.com/txpipe/aiken"
diff --git a/crates/uplc/Cargo.toml b/crates/uplc/Cargo.toml
index d8ce2c35..4e2dcbd2 100644
--- a/crates/uplc/Cargo.toml
+++ b/crates/uplc/Cargo.toml
@@ -1,7 +1,7 @@
 [package]
 name = "uplc"
 description = "Utilities for working with Untyped Plutus Core"
-version = "0.0.20"
+version = "0.0.21"
 edition = "2021"
 repository = "https://github.com/txpipe/aiken/crates/uplc"
 homepage = "https://github.com/txpipe/aiken"
@@ -14,7 +14,7 @@ exclude = ["test_data/*"]
 
 [dependencies]
 cryptoxide = "0.4.2"
-flat-rs = { path = "../flat", version = "0.0.20" }
+flat-rs = { path = "../flat", version = "0.0.21" }
 hex = "0.4.3"
 pallas-addresses = "0.14.0-alpha.3"
 pallas-codec = "0.14.0-alpha.3"