diff --git a/.github/workflows/Semgrep.yml b/.github/workflows/Semgrep.yml
index 1240455..f560548 100644
--- a/.github/workflows/Semgrep.yml
+++ b/.github/workflows/Semgrep.yml
@@ -34,7 +34,7 @@ jobs:
 
     steps:
       # Fetch project source with GitHub Actions Checkout.
-      - uses: actions/checkout@c85c95e3d7251135ab7dc9ce3241c5835cc595a9 # v3.5.3
+      - uses: actions/checkout@1af3b93b6815bc44a9784bd300feb67ff0d1eeb3 # v6.0.0
       # Run the "semgrep ci" command on the command line of the docker image.
       - run: semgrep ci --sarif --output=semgrep.sarif
         env:
diff --git a/.github/workflows/lint.yml b/.github/workflows/lint.yml
index 2133905..d26ccdf 100644
--- a/.github/workflows/lint.yml
+++ b/.github/workflows/lint.yml
@@ -5,7 +5,7 @@ jobs:
     name: Lint
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v6
       - uses: actions/setup-node@v3
         with:
           node-version: 16
diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
index da75aa8..e70d037 100644
--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@@ -6,7 +6,7 @@ jobs:
   publish:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v6
       - uses: actions/setup-node@v3
         with:
           node-version: 16
diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index cd9e383..77587ee 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -26,7 +26,7 @@ jobs:
       - name: Break on invalid branch name
         run: exit 1
         if: ${{ github.event_name == 'workflow_dispatch' && steps.regex-match.outputs && steps.regex-match.outputs.match == '' }}
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v6
       - uses: actions/setup-node@v3
         with:
           node-version: ${{ matrix.node }}
diff --git a/.github/workflows/typecheck.yml b/.github/workflows/typecheck.yml
index 5ca9657..a990fb1 100644
--- a/.github/workflows/typecheck.yml
+++ b/.github/workflows/typecheck.yml
@@ -5,7 +5,7 @@ jobs:
     name: Typecheck
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v6
       - uses: actions/setup-node@v3
         with:
           node-version: 16