diff --git a/.github/workflows/audit.yml b/.github/workflows/audit.yml
index d3cccf9..76027aa 100644
--- a/.github/workflows/audit.yml
+++ b/.github/workflows/audit.yml
@@ -15,7 +15,7 @@ jobs:
     if: github.event_name == 'pull_request'
     timeout-minutes: 10
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v5
       - run: cargo install --debug jas@0.3.0
       - run: >
           jas install
@@ -29,7 +29,7 @@ jobs:
     if: github.event_name == 'pull_request'
     timeout-minutes: 10
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v5
       - run: cargo install --debug jas@0.3.0
       - run: >
           jas install
diff --git a/.github/workflows/check.yml b/.github/workflows/check.yml
index 965dfa9..4b76fe6 100644
--- a/.github/workflows/check.yml
+++ b/.github/workflows/check.yml
@@ -13,7 +13,7 @@ jobs:
     timeout-minutes: 15
 
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v5
       - run: rustup update stable
       - run: rustup default stable
       - uses: actions/cache@v4
@@ -55,7 +55,7 @@ jobs:
     if: github.event_name == 'pull_request'
     timeout-minutes: 10
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v5
       - run: cargo install --debug jas@0.3.0
       - run: >
           jas install
@@ -69,7 +69,7 @@ jobs:
     if: github.event_name == 'pull_request'
     timeout-minutes: 10
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v5
       - run: rustup update stable
       - run: rustup default stable
       - run: rustup component add rustfmt
@@ -80,7 +80,7 @@ jobs:
     if: github.event_name == 'pull_request'
     timeout-minutes: 10
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v5
       - run: rustup update stable
       - run: rustup default stable
       - run: cargo clippy --all --all-features -- -D warnings
diff --git a/.github/workflows/examples.yml b/.github/workflows/examples.yml
index 1d463e0..d8bbb2b 100644
--- a/.github/workflows/examples.yml
+++ b/.github/workflows/examples.yml
@@ -17,7 +17,7 @@ jobs:
 
     # Not using non-official GitHub Actions for security reasons.
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v5
       - run: rustup update stable
       - run: rustup default stable
       - uses: actions/cache@v4
diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
index 8b29fb8..f852b9a 100644
--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@@ -30,7 +30,7 @@ jobs:
     permissions:
       contents: write
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v5
 
       - run: |
           rustup update stable