diff --git a/.gitea/workflows/test_build.yml b/.gitea/workflows/test_build.yml
index b991e53..3817663 100644
--- a/.gitea/workflows/test_build.yml
+++ b/.gitea/workflows/test_build.yml
@@ -6,6 +6,8 @@ on:
 jobs:
   build:
     runs-on: ubuntu-latest
+    container:
+      image: catthehacker/ubuntu:act-latest
     steps:
       - name: Check out repository code
         uses: actions/checkout@v4
@@ -29,7 +31,7 @@ jobs:
           echo "PATCH=${PATCH}"
       - name: Increment version
         run: |
-          source $GITEA_ENV
+          . $GITEA_ENV
           export "PATCH=$((${PATCH} + 1))" >> $GITEA_ENV
           export "NEW_VERSION=$(echo ${MAJOR}.${MINOR}.${PATCH})" >> $GITEA_ENV
           echo "NEW_VERSION=${NEW_VERSION}"
diff --git a/.gitea/workflows/test_image_build_push.yml b/.gitea/workflows/test_image_build_push.yml
index a07f84a..d96fd01 100644
--- a/.gitea/workflows/test_image_build_push.yml
+++ b/.gitea/workflows/test_image_build_push.yml
@@ -31,7 +31,7 @@ jobs:
           echo "PATCH=${PATCH}"
       - name: Increment version
         run: |
-          source $GITEA_ENV
+          . $GITEA_ENV
           export "PATCH=$((${PATCH} + 1))" >> $GITEA_ENV
           export "NEW_VERSION=$(echo ${MAJOR}.${MINOR}.${PATCH})" >> $GITEA_ENV
           echo "NEW_VERSION=${NEW_VERSION}"