diff --git a/.github/workflows/main.yaml b/.github/workflows/main.yaml
index 9297a95..aa42a63 100644
--- a/.github/workflows/main.yaml
+++ b/.github/workflows/main.yaml
@@ -9,10 +9,10 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
-    - uses: actions/checkout@v2
+    - uses: actions/checkout@v4
 
     - name: Install Nix
-      uses: cachix/install-nix-action@v16
+      uses: cachix/install-nix-action@v23
 
     - name: Run tests
       run: nix shell -c ./run-tests.py