diff --git a/.github/workflows/coverage.yaml b/.github/workflows/coverage.yaml
index 46e6025..daa8fd7 100644
--- a/.github/workflows/coverage.yaml
+++ b/.github/workflows/coverage.yaml
@@ -16,7 +16,7 @@ jobs:
     timeout-minutes: 30
     runs-on: ubuntu-20.04
     steps:
-      - uses: actions/checkout@v3.3.0
+      - uses: actions/checkout@v3.5.1
         with:
           persist-credentials: false
 
diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index bdce644..e42616f 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -7,7 +7,7 @@ jobs:
     name: test on nightly
     runs-on: ubuntu-latest
     steps:
-    - uses: actions/checkout@v3.3.0
+    - uses: actions/checkout@v3.5.1
     # Because we use nightly features for building docs,
     # using --all-features will fail without nightly toolchain.
     - uses: actions-rs/toolchain@v1.0.7