diff --git a/sagemaker-core/src/sagemaker/core/workflow/utilities.py b/sagemaker-core/src/sagemaker/core/workflow/utilities.py
index 007520778e..fb9b59e0a0 100644
--- a/sagemaker-core/src/sagemaker/core/workflow/utilities.py
+++ b/sagemaker-core/src/sagemaker/core/workflow/utilities.py
@@ -174,7 +174,7 @@ def get_code_hash(step: Entity) -> str:
             source_dir = source_code.source_dir
             requirements = source_code.requirements
             entry_point = source_code.entry_script
-            return get_training_code_hash(entry_point, source_dir, requirements)
+            return get_training_code_hash(entry_point, source_dir, [requirements] if requirements else [])
     return None