diff --git a/entrypoint.sh b/entrypoint.sh
index eadfcb8..066ba5e 100755
--- a/entrypoint.sh
+++ b/entrypoint.sh
@@ -15,5 +15,8 @@ pyenv latest local "$INPUT_PYTHON_VERSION"
 
 sh -c "poetry $*"
 
+# Clean up __pycache__
+find . -type d -name  "__pycache__" -exec rm -r {} +
+
 # Step back to starting directory.
 popd > /dev/null 2>&1 || return