diff --git a/.gitea/workflows/pr-validation.yml b/.gitea/workflows/pr-validation.yml
index 444f245..e1ca4b7 100644
--- a/.gitea/workflows/pr-validation.yml
+++ b/.gitea/workflows/pr-validation.yml
@@ -11,6 +11,9 @@ jobs:
   validate:
     runs-on: ubuntu-latest
     container: docker.io/catthehacker/ubuntu:act-latest
+    defaults:
+      run:
+        shell: bash
     env:
       ARTEFACT_BUCKET_NAME: ${{ vars.ARTEFACT_BUCKET_NAME }}
       ARTEFACT_BUCKET_ENDPONT: ${{ vars.ARTEFACT_BUCKET_ENDPONT }}
diff --git a/.gitea/workflows/push-validation.yml b/.gitea/workflows/push-validation.yml
index c103ad1..ed96c5f 100644
--- a/.gitea/workflows/push-validation.yml
+++ b/.gitea/workflows/push-validation.yml
@@ -11,6 +11,9 @@ jobs:
   validate:
     runs-on: ubuntu-latest
     container: docker.io/catthehacker/ubuntu:act-latest
+    defaults:
+      run:
+        shell: bash
     env:
       ARTEFACT_BUCKET_NAME: ${{ vars.ARTEFACT_BUCKET_NAME }}
       ARTEFACT_BUCKET_ENDPONT: ${{ vars.ARTEFACT_BUCKET_ENDPONT }}
diff --git a/.gitea/workflows/tag-build-artifacts.yml b/.gitea/workflows/tag-build-artifacts.yml
index 4a2d640..cfca3a5 100644
--- a/.gitea/workflows/tag-build-artifacts.yml
+++ b/.gitea/workflows/tag-build-artifacts.yml
@@ -9,6 +9,9 @@ jobs:
   build:
     runs-on: ubuntu-latest
     container: docker.io/catthehacker/ubuntu:act-latest
+    defaults:
+      run:
+        shell: bash
     env:
       RUNNER_TOOL_CACHE: /cache/tools
     strategy: