diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 5c46dbf34e..9ad94e776c 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -77,7 +77,7 @@ jobs:
           distribution: ${{ env.java_distribution }}
           cache: maven
       - name: setup cvmfs
-        uses: cvmfs-contrib/github-action-cvmfs@v5
+        uses: cvmfs-contrib/github-action-cvmfs@v5.4
         with:
           cvmfs_repositories: 'oasis.opensciencegrid.org'
       - name: cvmfs
@@ -128,7 +128,7 @@ jobs:
           java-version: ${{ matrix.JAVA_VERSION }}
           distribution: ${{ env.java_distribution }}
           cache: maven
-      - uses: cvmfs-contrib/github-action-cvmfs@v5
+      - uses: cvmfs-contrib/github-action-cvmfs@v5.4
         with:
           cvmfs_repositories: 'oasis.opensciencegrid.org'
       - name: unit tests
@@ -155,7 +155,7 @@ jobs:
           java-version: ${{ env.JAVA_VERSION }}
           distribution: ${{ env.java_distribution }}
           cache: maven
-      - uses: cvmfs-contrib/github-action-cvmfs@v5
+      - uses: cvmfs-contrib/github-action-cvmfs@v5.4
         with:
           cvmfs_repositories: 'oasis.opensciencegrid.org'
       - uses: actions/download-artifact@v7
@@ -177,7 +177,7 @@ jobs:
           java-version: ${{ env.JAVA_VERSION }}
           distribution: ${{ env.java_distribution }}
           cache: maven
-      - uses: cvmfs-contrib/github-action-cvmfs@v5
+      - uses: cvmfs-contrib/github-action-cvmfs@v5.4
         with:
           cvmfs_repositories: 'oasis.opensciencegrid.org'
       - uses: actions/download-artifact@v7
@@ -209,7 +209,7 @@ jobs:
           distribution: ${{ env.java_distribution }}
           cache: maven
       - name: setup cvmfs
-        uses: cvmfs-contrib/github-action-cvmfs@v5
+        uses: cvmfs-contrib/github-action-cvmfs@v5.4
         with:
           cvmfs_repositories: 'oasis.opensciencegrid.org'
       - uses: actions/download-artifact@v7
@@ -265,7 +265,7 @@ jobs:
       - uses: actions/download-artifact@v7
         with:
           name: build_${{ matrix.runner }}
-      - uses: cvmfs-contrib/github-action-cvmfs@v5
+      - uses: cvmfs-contrib/github-action-cvmfs@v5.4
         with:
           cvmfs_repositories: 'oasis.opensciencegrid.org'
       - name: untar build
diff --git a/.github/workflows/validation.yml b/.github/workflows/validation.yml-DISABLED
similarity index 100%
rename from .github/workflows/validation.yml
rename to .github/workflows/validation.yml-DISABLED