diff --git a/.github/workflows/continuous-delivery.yml b/.github/workflows/continuous-delivery.yml
index bda9961..5ab7a3e 100644
--- a/.github/workflows/continuous-delivery.yml
+++ b/.github/workflows/continuous-delivery.yml
@@ -14,7 +14,7 @@ jobs:
       ep4k-changed: ${{ steps.filter.outputs.ep4k-changed }}
     steps:
       - name: Checkout
-        uses: actions/checkout@v3.5.3
+        uses: actions/checkout@v4.0.0
 
       - name: Check for changes
         uses: dorny/paths-filter@v2.11.1
@@ -34,7 +34,7 @@ jobs:
     if: needs.change-triage.outputs.ep4k-changed == 'true'
     steps:
       - name: Checkout
-        uses: actions/checkout@v3.5.3
+        uses: actions/checkout@v4.0.0
         with:
           fetch-depth: 0
 
@@ -68,7 +68,7 @@ jobs:
     if: needs.change-triage.outputs.pg4k-pgd-changed == 'true'
     steps:
       - name: Checkout
-        uses: actions/checkout@v3.5.3
+        uses: actions/checkout@v4.0.0
         with:
           fetch-depth: 0
 
diff --git a/.github/workflows/lint.yml b/.github/workflows/lint.yml
index 1fc12ea..8b4f2a8 100644
--- a/.github/workflows/lint.yml
+++ b/.github/workflows/lint.yml
@@ -11,7 +11,7 @@ jobs:
     runs-on: ubuntu-22.04
     steps:
       - name: Checkout
-        uses: actions/checkout@v3.5.3
+        uses: actions/checkout@v4.0.0
         with:
           fetch-depth: 0
 
diff --git a/.github/workflows/release-pr.yml b/.github/workflows/release-pr.yml
index 41fe262..274af9d 100644
--- a/.github/workflows/release-pr.yml
+++ b/.github/workflows/release-pr.yml
@@ -13,7 +13,7 @@ jobs:
     steps:
       -
         name: Checkout
-        uses: actions/checkout@v3.5.3
+        uses: actions/checkout@v4.0.0
       -
         name: Get tag
         run: |
diff --git a/.github/workflows/release-publish.yml b/.github/workflows/release-publish.yml
index 8b63857..f39ec42 100644
--- a/.github/workflows/release-publish.yml
+++ b/.github/workflows/release-publish.yml
@@ -10,7 +10,7 @@ jobs:
     runs-on: ubuntu-22.04
     steps:
       - name: Checkout
-        uses: actions/checkout@v3.5.3
+        uses: actions/checkout@v4.0.0
         with:
           fetch-depth: 0
 
@@ -24,7 +24,7 @@ jobs:
     runs-on: ubuntu-22.04
     steps:
       - name: Checkout
-        uses: actions/checkout@v3.5.3
+        uses: actions/checkout@v4.0.0
         with:
           ref: gh-pages
           fetch-depth: 0
diff --git a/.github/workflows/release-tag.yml b/.github/workflows/release-tag.yml
index 2bb800f..6296f81 100644
--- a/.github/workflows/release-tag.yml
+++ b/.github/workflows/release-tag.yml
@@ -15,7 +15,7 @@ jobs:
     steps:
       -
         name: Checkout
-        uses: actions/checkout@v3.5.3
+        uses: actions/checkout@v4.0.0
       -
         name: Temporarily disable "include administrators" branch protection
         if: ${{ always() && github.ref == 'refs/heads/main' }}