diff --git a/contrib/git.nwchem/github_actions_tahoma.txt b/contrib/git.nwchem/github_actions_tahoma.txt
index e90d30603e..d95dc7fcce 100644
--- a/contrib/git.nwchem/github_actions_tahoma.txt
+++ b/contrib/git.nwchem/github_actions_tahoma.txt
@@ -11,7 +11,7 @@ jobs:
       inherit
   build_singularity:
     needs: [build_workflow]
-    uses: edoapra/nwchem-singularity/.github/workflows/apptainer_action.ifx.yml
+    uses: edoapra/nwchem-singularity/.github/workflows/apptainer_action.ifx.yml@master
     secrets:
       inherit
   build: