diff --git a/.github/workflows/rust.yml b/.github/workflows/rust.yml
index af0cdb7..3c5900f 100644
--- a/.github/workflows/rust.yml
+++ b/.github/workflows/rust.yml
@@ -15,6 +15,6 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
-    - uses: actions/checkout@v3
+    - uses: actions/checkout@3df4ab11eba7bda6032a0b82a6bb43b11571feac # v4
     - name: Build
       run: cargo build --verbose