diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index 30019862..6ecc662d 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -38,6 +38,9 @@ before_script:
 ci:
   stage: ci
   image: nixos/nix:2.18.2
+  rules:
+    - if: $CI_COMMIT_BRANCH == $CI_DEFAULT_BRANCH
+    - if: $CI_PIPELINE_SOURCE == 'merge_request_event'
   script:
     - ./bin/nix-build-and-cache ci
 
@@ -50,17 +53,20 @@ ci:
 artifacts:
   stage: artifacts
   image: nixos/nix:2.18.2
+  rules:
+    - if: $CI_COMMIT_BRANCH == $CI_DEFAULT_BRANCH
+    - if: $CI_PIPELINE_SOURCE == 'merge_request_event'
   script:
     - ./bin/nix-build-and-cache packages
 
 pages:
   stage: deploy
   image: nixos/nix:2.18.2
+  rules:
+    - if: $CI_COMMIT_BRANCH == $CI_DEFAULT_BRANCH
   script:
     - nix build .#website-root
     - cp --recursive --dereference result public
   artifacts:
     paths:
       - public
-  only:
-    - main