diff --git a/.github/workflows/matrix-gen-ci.yml b/.github/workflows/matrix-gen-ci.yml
index 0961b95..87b87a5 100644
--- a/.github/workflows/matrix-gen-ci.yml
+++ b/.github/workflows/matrix-gen-ci.yml
@@ -9,7 +9,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout repo ⤵️
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
     
       - name: Build matrix_gen
         working-directory: ./matrix_gen