diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 6d09394..755883d 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -1,15 +1,21 @@
 name: CI
 
-on: push
+on:
+  push:
+    branches:
+      - main
+  pull_request:
+    branches:
+      - main
 
 jobs:
   test:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v3
-      - uses: goto-bus-stop/setup-zig@v1
+      - uses: actions/checkout@v4
+      - uses: goto-bus-stop/setup-zig@v2
         with:
-          version: master
+          version: 0.12.0
       - name: fmt
         run: zig fmt --check *.zig src/*.zig
       - name: test