diff --git a/.github/workflows/cd.yml b/.github/workflows/cd.yml
index 767f3698..96e51089 100644
--- a/.github/workflows/cd.yml
+++ b/.github/workflows/cd.yml
@@ -15,7 +15,7 @@ jobs:
   dist:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v5
         with:
           fetch-depth: 0
           persist-credentials: false
diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 5b51c5fb..e90c61f6 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -23,7 +23,7 @@ jobs:
     runs-on: ubuntu-latest
     timeout-minutes: 8
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v5
         with:
           fetch-depth: 0
           persist-credentials: false
@@ -108,7 +108,7 @@ jobs:
             cmake-version: "4.0"
 
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v5
         with:
           persist-credentials: false
 
@@ -165,7 +165,7 @@ jobs:
         runs-on: [ubuntu-latest, macos-13, windows-latest]
 
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v5
         with:
           persist-credentials: false
 
@@ -209,7 +209,7 @@ jobs:
     timeout-minutes: 40
     container: quay.io/pypa/musllinux_1_2_x86_64:latest
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v5
         with:
           fetch-depth: 0
           persist-credentials: false
@@ -229,7 +229,7 @@ jobs:
     timeout-minutes: 40
 
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v5
         with:
           fetch-depth: 0
           persist-credentials: false
@@ -268,7 +268,7 @@ jobs:
           pacboy: >-
             python:p python-pip:p gcc:p cmake:p
 
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v5
         with:
           fetch-depth: 0
           persist-credentials: false
@@ -301,7 +301,7 @@ jobs:
           pacboy: >-
             python:p python-pip:p gcc:p cmake:p
 
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v5
         with:
           fetch-depth: 0
           persist-credentials: false
@@ -322,7 +322,7 @@ jobs:
     timeout-minutes: 5
 
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v5
         with:
           fetch-depth: 0
           persist-credentials: false
@@ -338,7 +338,7 @@ jobs:
         runs-on: [ubuntu-latest, macos-latest] # Windows command output issue (wrong Python selected)
 
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v5
         with:
           fetch-depth: 0
           persist-credentials: false
diff --git a/.github/workflows/nightlies.yml b/.github/workflows/nightlies.yml
index ffb3f794..c75c1e1d 100644
--- a/.github/workflows/nightlies.yml
+++ b/.github/workflows/nightlies.yml
@@ -17,7 +17,7 @@ jobs:
     if: github.repository_owner == 'scikit-build'
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v5
         with:
           fetch-depth: 0