diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index 0501897..92a365a 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -58,7 +58,7 @@ docker-build-push:
   stage: publish
   needs: [build-and-test]
   rules:
-    - if: $CI_PIPELINE_SOURCE == "push" && $CI_COMMIT_BRANCH == "analyze-graphics"
+    - if: $CI_PIPELINE_SOURCE == "push" && $CI_COMMIT_BRANCH == "analyze-graphics" && $GHCR_USERNAME && $GHCR_TOKEN
   image: docker:24-cli
   services:
     - docker:24-dind
@@ -78,7 +78,7 @@ deploy:
   stage: deploy
   needs: [docker-build-push]
   rules:
-    - if: $CI_PIPELINE_SOURCE == "push" && $CI_COMMIT_BRANCH == "analyze-graphics" && $ENABLE_SSH_DEPLOY == "true"
+    - if: $CI_PIPELINE_SOURCE == "push" && $CI_COMMIT_BRANCH == "analyze-graphics" && $ENABLE_SSH_DEPLOY == "true" && $GHCR_USERNAME && $GHCR_TOKEN
   image: alpine:3.20
   before_script:
     - apk add --no-cache openssh-client