diff --git a/test-requirements.txt b/test-requirements.txt
index 8afa0bd..89d0187 100644
--- a/test-requirements.txt
+++ b/test-requirements.txt
@@ -4,7 +4,7 @@ coveralls>=2.0.0
 virtualenv>=3.1.0
 gitpython>=3.1.3
 docker>=4.2.1
-cwltool==3.0.20200706173533
+cwltool==3.1.20251031082601
 pandas==1.0.5
 mypy
 matplotlib
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