diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index c916fa61..5ea21a8a 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -11,7 +11,7 @@ jobs:
   lint:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
       - uses: actions/setup-node@v4
         with:
           node-version-file: "package.json"
@@ -22,7 +22,7 @@ jobs:
   build:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
       - uses: actions/setup-node@v4
         with:
           node-version-file: "package.json"
@@ -33,7 +33,7 @@ jobs:
   test:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
       - uses: actions/setup-node@v4
         with:
           node-version-file: "package.json"
@@ -44,7 +44,7 @@ jobs:
   test-int:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
       - uses: actions/setup-node@v4
         with:
           node-version-file: "package.json"
@@ -59,7 +59,7 @@ jobs:
     needs: [lint, build, test, test-int]
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
       - uses: actions/setup-node@v4
         with:
           node-version-file: "package.json"
@@ -114,7 +114,7 @@ jobs:
     env:
       STRYKER_DASHBOARD_API_KEY: ${{ secrets.STRYKER_DASHBOARD_API_KEY }}
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
       - uses: actions/setup-node@v4
         with:
           node-version-file: "package.json"
@@ -129,7 +129,7 @@ jobs:
     env:
       STRYKER_DASHBOARD_API_KEY: ${{ secrets.STRYKER_DASHBOARD_API_KEY }}
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
       - uses: actions/setup-node@v4
         with:
           node-version-file: "package.json"
@@ -169,7 +169,7 @@ jobs:
     if: github.ref == 'refs/heads/main'
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
       - uses: actions/setup-node@v4
         with:
           node-version-file: "package.json"
@@ -207,7 +207,7 @@ jobs:
     if: github.ref == 'refs/heads/main'
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
       - uses: actions/setup-node@v4
         with:
           node-version-file: "package.json"
diff --git a/.github/workflows/cleanup-stacks.yml b/.github/workflows/cleanup-stacks.yml
index c443838f..3c62eaa1 100644
--- a/.github/workflows/cleanup-stacks.yml
+++ b/.github/workflows/cleanup-stacks.yml
@@ -9,7 +9,7 @@ jobs:
   cleanup:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
       - uses: jbrunton/cleanup-pulumi-stacks@v2
         with:
           working-directory: pulumi