diff --git a/.github/workflows/build-containers.yml b/.github/workflows/build-containers.yml
index e5537783cdf..5057a89a455 100644
--- a/.github/workflows/build-containers.yml
+++ b/.github/workflows/build-containers.yml
@@ -76,7 +76,7 @@ jobs:
           fi
 
       - name: Upload Dockerfile
-        uses: actions/upload-artifact@6673cd052c4cd6fcf4b4e6e60ea986c889389535
+        uses: actions/upload-artifact@3cea5372237819ed00197afe530f5a7ea3e805c8
         with:
           name: dockerfiles
           path: dockerfiles
diff --git a/.github/workflows/windows_python.yml b/.github/workflows/windows_python.yml
index 10e4d4eee37..4707cab4169 100644
--- a/.github/workflows/windows_python.yml
+++ b/.github/workflows/windows_python.yml
@@ -139,11 +139,11 @@ jobs:
         echo "installer_root=$((pwd).Path)" | Out-File -FilePath $Env:GITHUB_ENV -Encoding utf8 -Append
       env:
         ProgressPreference: SilentlyContinue
-    - uses: actions/upload-artifact@v3
+    - uses: actions/upload-artifact@3cea5372237819ed00197afe530f5a7ea3e805c8
       with:
         name: Windows Spack Installer Bundle
         path: ${{ env.installer_root }}\pkg\Spack.exe
-    - uses: actions/upload-artifact@v3
+    - uses: actions/upload-artifact@3cea5372237819ed00197afe530f5a7ea3e805c8
       with:
         name: Windows Spack Installer
         path: ${{ env.installer_root}}\pkg\Spack.msi