diff --git a/crates/uplc/test_data/conformance/evaluation/builtin/semantics/constrData/constrData.uplc b/crates/uplc/test_data/conformance/evaluation/builtin/semantics/constrData/constrData.uplc
index 9cab30e0..22b5d1a5 100644
--- a/crates/uplc/test_data/conformance/evaluation/builtin/semantics/constrData/constrData.uplc
+++ b/crates/uplc/test_data/conformance/evaluation/builtin/semantics/constrData/constrData.uplc
@@ -1 +1 @@
-(program 0.0.0 [[(builtin constrData) (con integer 1)] (con list(data) [{ Integer 0 }])] )
\ No newline at end of file
+(program 0.0.0 [[(builtin constrData) (con integer 1)] (con (list data) [I 0])] )
\ No newline at end of file
diff --git a/crates/uplc/test_data/conformance/evaluation/builtin/semantics/constrData/constrData.uplc.expected b/crates/uplc/test_data/conformance/evaluation/builtin/semantics/constrData/constrData.uplc.expected
index fd569489..1db79668 100644
--- a/crates/uplc/test_data/conformance/evaluation/builtin/semantics/constrData/constrData.uplc.expected
+++ b/crates/uplc/test_data/conformance/evaluation/builtin/semantics/constrData/constrData.uplc.expected
@@ -1 +1 @@
-parse error
\ No newline at end of file
+(program 0.0.0 (con data (Constr 1 [I 0])))
\ No newline at end of file