diff --git a/.github/workflows/ch07-packaging.yml b/.github/workflows/ch07-packaging.yml
index 41ae9bf..aad94f2 100644
--- a/.github/workflows/ch07-packaging.yml
+++ b/.github/workflows/ch07-packaging.yml
@@ -8,7 +8,7 @@ jobs:
     name: Check formatting
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v5
 
       - uses: actions/setup-python@v4.0.0
         with:
@@ -25,7 +25,7 @@ jobs:
     name: Lint
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v5
 
       - uses: actions/setup-python@v4.0.0
         with:
@@ -42,7 +42,7 @@ jobs:
     name: Type check
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v5
 
       - uses: actions/setup-python@v4.0.0
         with:
@@ -66,7 +66,7 @@ jobs:
           - version: "3.9"
             toxenv: "py39"
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v5
 
       - uses: actions/setup-python@v4.0.0
         with:
@@ -83,7 +83,7 @@ jobs:
     name: Build source distribution
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v5
 
       - uses: actions/setup-python@v4.0.0
         with:
@@ -108,7 +108,7 @@ jobs:
         os: [ubuntu-20.04, windows-2019, macOS-10.15]
 
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v5
 
       - uses: actions/setup-python@v4.0.0
         with:
diff --git a/.github/workflows/ch08-packaging.yml b/.github/workflows/ch08-packaging.yml
index 3410f2c..6128faa 100644
--- a/.github/workflows/ch08-packaging.yml
+++ b/.github/workflows/ch08-packaging.yml
@@ -8,7 +8,7 @@ jobs:
     name: Check formatting
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v5
 
       - uses: actions/setup-python@v4.0.0
         with:
@@ -25,7 +25,7 @@ jobs:
     name: Lint
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v5
 
       - uses: actions/setup-python@v4.0.0
         with:
@@ -42,7 +42,7 @@ jobs:
     name: Type check
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v5
 
       - uses: actions/setup-python@v4.0.0
         with:
@@ -66,7 +66,7 @@ jobs:
           - version: "3.9"
             toxenv: "py39"
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v5
 
       - uses: actions/setup-python@v4.0.0
         with:
@@ -83,7 +83,7 @@ jobs:
     name: Build source distribution
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v5
 
       - uses: actions/setup-python@v4.0.0
         with:
@@ -108,7 +108,7 @@ jobs:
         os: [ubuntu-20.04, windows-2019, macOS-10.15]
 
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v5
 
       - uses: actions/setup-python@v4.0.0
         with:
diff --git a/.github/workflows/codeql-analysis.yml b/.github/workflows/codeql-analysis.yml
index 590eb09..432f450 100644
--- a/.github/workflows/codeql-analysis.yml
+++ b/.github/workflows/codeql-analysis.yml
@@ -24,7 +24,7 @@ jobs:
 
     steps:
     - name: Checkout repository
-      uses: actions/checkout@v3
+      uses: actions/checkout@v5
 
     - name: Initialize CodeQL
       uses: github/codeql-action/init@v2