diff --git a/base/dirac_dependencies.yml b/base/dirac_dependencies.yml
index 5e440b3..a38089f 100644
--- a/base/dirac_dependencies.yml
+++ b/base/dirac_dependencies.yml
@@ -13,6 +13,7 @@ dependencies:
   - aiobotocore
   - boto3
   - botocore
+  - cwltool
   - db12
   - diraccfg
   - dominate