diff --git a/.github/workflows/ci-osx.yml b/.github/workflows/ci-osx.yml
index 10713aa..047e579 100644
--- a/.github/workflows/ci-osx.yml
+++ b/.github/workflows/ci-osx.yml
@@ -8,7 +8,7 @@ jobs:
     runs-on: macos-12
 
     steps:
-    - uses: actions/checkout@v2
+    - uses: actions/checkout@v4
     - name: Get xquartz pt 2
       run: brew install --cask xquartz
     - name: find gfortran