diff --git a/.gitea/workflows/ci.yml b/.gitea/workflows/ci.yml
index e3f3b67..4ac0f2f 100644
--- a/.gitea/workflows/ci.yml
+++ b/.gitea/workflows/ci.yml
@@ -30,10 +30,13 @@ jobs:
     name: Build & Push to Registry
     runs-on: ubuntu-latest
     needs: test
-    if: startsWith(github.ref, 'refs/tags/v')
+    if: github.ref_type == 'tag' && startsWith(github.ref_name, 'v')
     steps:
       - name: Debug ref
-        run: echo "github.ref = ${{ github.ref }}"
+        run: |
+          echo "github.ref = ${{ github.ref }}"
+          echo "github.ref_type = ${{ github.ref_type }}"
+          echo "github.ref_name = ${{ github.ref_name }}"
 
       - name: Checkout code
         uses: actions/checkout@v4
diff --git a/brain/Dockerfile b/brain/Dockerfile
index 64f710b..4f963bf 100644
--- a/brain/Dockerfile
+++ b/brain/Dockerfile
@@ -6,7 +6,7 @@ ARG RUNNER
 # ===========================================
 # Stage 1: Builder
 # ===========================================
-FROM python:${PYTHON_VERSION}-slim-bookworm as builder
+FROM python:${PYTHON_VERSION}-slim-bookworm AS builder
 
 # Re-declare ARGs after FROM to make them available in this stage
 ARG RUNNER
@@ -45,7 +45,7 @@ RUN --mount=type=cache,target=/root/.cache/pip \
 # ===========================================
 # Stage 2: Testing
 # ===========================================
-FROM builder as test
+FROM builder AS test
 
 ARG RUNNER
 
@@ -68,7 +68,7 @@ COPY brain/app.py .
 # ===========================================
 # Stage 3: Runtime
 # ===========================================
-FROM python:${PYTHON_VERSION}-slim-bookworm as runtime
+FROM python:${PYTHON_VERSION}-slim-bookworm AS runtime
 
 ARG PYTHON_VERSION_SHORT