diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 956d75e..fb1d8ac 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -1,5 +1,5 @@
 name: CI
-on: [push, pull_request]
+on: push
 
 jobs:
   build:
@@ -7,6 +7,8 @@ jobs:
 
     steps:
       - uses: actions/checkout@v6
+        with:
+          submodules: recursive
       - uses: actions/cache@v5
         with:
           path: |