diff --git a/pyproject.toml b/pyproject.toml
index c769f3ec..283bbf21 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -35,7 +35,7 @@ classifiers = [
 ]
 requires-python = ">=3.9"
 dependencies = [
-    "cwl-utils >= 0.36, < 0.37",
+    "cwl-utils >= 0.36, < 0.41",
     "miniwdl",
     "regex",
     "ruamel.yaml < 0.17.22"