diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index bee7177..ea1a59f 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -23,6 +23,8 @@ release:
     - docker login -u $CI_REGISTRY_USER -p $CI_REGISTRY_PASSWORD $CI_REGISTRY
     - docker build . -t $CONTAINER_BRANCH_IMAGE
     - docker push $CONTAINER_BRANCH_IMAGE
+  except:
+    - master
 
 release-master:
   stage: release
diff --git a/Dockerfile b/Dockerfile
index 0dd7fe6..9d2cde8 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,4 +1,4 @@
-FROM registry.gitlab.com/lovallat/php-apache-pagespeed:master
+FROM registry.gitlab.com/lovallat/php-apache-pagespeed:latest
 
 EXPOSE 80