diff --git a/.gitea/workflows/ci.yml b/.gitea/workflows/ci.yml
index c026181..1adc984 100644
--- a/.gitea/workflows/ci.yml
+++ b/.gitea/workflows/ci.yml
@@ -38,10 +38,10 @@ jobs:
           ref: main
 
       - name: Install and test a BEC plugin repository
-        uses: https://gitea.psi.ch/bec/bec_shared_actions/.gitea/plugin_repo_tests@main
+        uses: https://gitea.psi.ch/bec/bec_shared_actions/.gitea/plugin_repo_tests.git@main
         with:
-          BEC_CORE_BRANCH: ${{ inputs.BEC_CORE_BRANCH }}
-          BEC_WIDGETS_BRANCH: ${{ inputs.BEC_WIDGETS_BRANCH }}
-          OPHYD_DEVICES_BRANCH: ${{ inputs.OPHYD_DEVICES_BRANCH }}
+          BEC_CORE_BRANCH: ${{ inputs.BEC_CORE_BRANCH || 'main' }}
+          BEC_WIDGETS_BRANCH: ${{ inputs.BEC_WIDGETS_BRANCH || 'main' }}
+          OPHYD_DEVICES_BRANCH: ${{ inputs.OPHYD_DEVICES_BRANCH || 'main' }}
           BEC_PLUGIN_REPO_URL: "https://gitea.psi.ch/bec/phoenix_bec.git"
           PYTHON_VERSION: "3.11"