diff --git a/.github/workflows/cd.yml b/.github/workflows/cd.yml
index 527153e6a..52d00691e 100644
--- a/.github/workflows/cd.yml
+++ b/.github/workflows/cd.yml
@@ -94,7 +94,7 @@ jobs:
           fi
 
       - name: "Stage 0: Checkout repo"
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
         with:
           fetch-depth: 0
 
@@ -232,7 +232,7 @@ jobs:
           fi
 
       - name: "Stage 0: Checkout repo"
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
         with:
           fetch-depth: 0
 
diff --git a/.github/workflows/prune-harbor.yaml b/.github/workflows/prune-harbor.yaml
index 95ccab249..9b823a947 100644
--- a/.github/workflows/prune-harbor.yaml
+++ b/.github/workflows/prune-harbor.yaml
@@ -21,7 +21,7 @@ jobs:
           - name: ovh2
 
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
 
       - uses: actions/setup-python@v4
         with:
diff --git a/.github/workflows/terraform-deploy-aws-curvenote.yml b/.github/workflows/terraform-deploy-aws-curvenote.yml
index 768cba1d9..c8450a8cb 100644
--- a/.github/workflows/terraform-deploy-aws-curvenote.yml
+++ b/.github/workflows/terraform-deploy-aws-curvenote.yml
@@ -34,7 +34,7 @@ jobs:
       apply: ${{ steps.terraform-plan.outputs.apply }}
 
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
 
       - name: Configure AWS credentials
         uses: aws-actions/configure-aws-credentials@v2
@@ -111,7 +111,7 @@ jobs:
     if: needs.terraform-plan.outputs.apply == 'true'
 
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
 
       - name: Configure AWS credentials
         uses: aws-actions/configure-aws-credentials@v2
diff --git a/.github/workflows/terraform.yml b/.github/workflows/terraform.yml
index f94f843d8..4811fb0bb 100644
--- a/.github/workflows/terraform.yml
+++ b/.github/workflows/terraform.yml
@@ -15,7 +15,7 @@ jobs:
   terraform-pre-commit:
     runs-on: ubuntu-22.04
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
       - uses: actions/setup-python@v4
         with:
           python-version-file: ".python-version"
diff --git a/.github/workflows/test-helm-template.yaml b/.github/workflows/test-helm-template.yaml
index b396c147e..feca5459f 100644
--- a/.github/workflows/test-helm-template.yaml
+++ b/.github/workflows/test-helm-template.yaml
@@ -43,7 +43,7 @@ jobs:
             k3s-channel: "v1.24"
 
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
       - uses: actions/setup-python@v4
         with:
           python-version-file: ".python-version"
diff --git a/.github/workflows/test-yamllint.yml b/.github/workflows/test-yamllint.yml
index 7f2d07b27..948b56a4f 100644
--- a/.github/workflows/test-yamllint.yml
+++ b/.github/workflows/test-yamllint.yml
@@ -25,7 +25,7 @@ jobs:
     runs-on: ubuntu-20.04
 
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
       - uses: actions/setup-python@v4
         with:
           python-version-file: ".python-version"
diff --git a/.github/workflows/watch-dependencies.yaml b/.github/workflows/watch-dependencies.yaml
index d15c39f3a..c09bc70b0 100644
--- a/.github/workflows/watch-dependencies.yaml
+++ b/.github/workflows/watch-dependencies.yaml
@@ -42,7 +42,7 @@ jobs:
             source_url: https://github.com/jupyterhub/repo2docker
 
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
 
       - uses: actions/setup-python@v4
         with:
@@ -172,7 +172,7 @@ jobs:
             github_repo: ""
 
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
 
       - uses: actions/setup-python@v4
         with: