diff --git a/.github/workflows/fuzz.yml b/.github/workflows/fuzz.yml
index 36abc2a..0b81feb 100644
--- a/.github/workflows/fuzz.yml
+++ b/.github/workflows/fuzz.yml
@@ -15,7 +15,7 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
-    - uses: actions/checkout@v3
+    - uses: actions/checkout@v4
     - name: Install nightly Rust
       shell: bash
       run: |
diff --git a/.github/workflows/rust.yml b/.github/workflows/rust.yml
index bba04d2..a6ba4f8 100644
--- a/.github/workflows/rust.yml
+++ b/.github/workflows/rust.yml
@@ -13,7 +13,7 @@ jobs:
   build:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
       - name: Build
         run: cargo build --verbose
       - name: Run tests
@@ -24,7 +24,7 @@ jobs:
   msrv-all:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
       - name: Install MSRV
         run: rustup update 1.62.1 && rustup default 1.62.1
       - name: Test