diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 79f31fdc..0f216d66 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -16,7 +16,7 @@ jobs:
         os: [ubuntu-22.04]
         emulator: [simh, klh10, pdp10-ka, pdp10-kl, pdp10-ks]
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v4
       - name: Install dependencies
         env:
           EMULATOR: ${{matrix.emulator}}