diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index e137142..eeba470 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -2,6 +2,10 @@ variables:
   CI_REGISTRY_IMAGE_GRADLE: "$CI_REGISTRY_IMAGE:latest-gradle"
   CI_REGISTRY_IMAGE_BACKEND: "$CI_REGISTRY_IMAGE:latest"
 
+only:
+  refs:
+    - master
+
 before_script:
   - docker info
   - docker login -u $CI_USERNAME -p $CI_ACCESS_TOKEN $CI_REGISTRY