diff --git a/.github/workflows/0-welcome.yml b/.github/workflows/0-welcome.yml
index 7c6c394..2fea737 100644
--- a/.github/workflows/0-welcome.yml
+++ b/.github/workflows/0-welcome.yml
@@ -22,7 +22,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout
-        uses: actions/checkout@v4
+        uses: actions/checkout@v5
       - id: get_step
         run: |
           echo "current_step=$(cat ./.github/steps/-step.txt)" >> $GITHUB_OUTPUT
@@ -48,7 +48,7 @@ jobs:
     steps:
       # We'll need to check out the repository so that we can edit the README.
       - name: Checkout
-        uses: actions/checkout@v4
+        uses: actions/checkout@v5
         with:
           fetch-depth: 0 # Let's get all the branches.
 
diff --git a/.github/workflows/1-codeql-language-matrix.yml b/.github/workflows/1-codeql-language-matrix.yml
index 0e6abc0..cdcd4e4 100644
--- a/.github/workflows/1-codeql-language-matrix.yml
+++ b/.github/workflows/1-codeql-language-matrix.yml
@@ -26,7 +26,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout
-        uses: actions/checkout@v4
+        uses: actions/checkout@v5
       - id: get_step
         run: |
           echo "current_step=$(cat ./.github/steps/-step.txt)" >> $GITHUB_OUTPUT
@@ -52,7 +52,7 @@ jobs:
     steps:
       # We'll need to check out the repository so that we can edit the README.
       - name: Checkout
-        uses: actions/checkout@v4
+        uses: actions/checkout@v5
 
       # Verify the learner added the file contents.
       - name: Check workflow contents, jobs
diff --git a/.github/workflows/2-codeql-autobuild.yml b/.github/workflows/2-codeql-autobuild.yml
index 3ace0ba..75e9fd3 100644
--- a/.github/workflows/2-codeql-autobuild.yml
+++ b/.github/workflows/2-codeql-autobuild.yml
@@ -26,7 +26,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout
-        uses: actions/checkout@v4
+        uses: actions/checkout@v5
       - id: get_step
         run: |
           echo "current_step=$(cat ./.github/steps/-step.txt)" >> $GITHUB_OUTPUT
@@ -52,7 +52,7 @@ jobs:
     steps:
       # We'll need to check out the repository so that we can edit the README.
       - name: Checkout
-        uses: actions/checkout@v4
+        uses: actions/checkout@v5
         with:
           fetch-depth: 0 # Let's get all the branches.
 
diff --git a/.github/workflows/codeql.yml b/.github/workflows/codeql.yml
index 0db69d5..fcff1de 100644
--- a/.github/workflows/codeql.yml
+++ b/.github/workflows/codeql.yml
@@ -16,7 +16,7 @@ jobs:
 
     steps:
       - name: Checkout repository
-        uses: actions/checkout@v4
+        uses: actions/checkout@v5
 
       - name: Initialize CodeQL
         uses: github/codeql-action/init@v3