diff --git a/.github/workflows/buf-push.yaml b/.github/workflows/buf-push.yaml
index 6809013..9452fcc 100644
--- a/.github/workflows/buf-push.yaml
+++ b/.github/workflows/buf-push.yaml
@@ -11,7 +11,7 @@ jobs:
   push:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v5
 
         # This step sets up the variable steps.buf-version.outputs.v
         # to contain the version of Buf (e.g. v1.36.0) from go.mod.
diff --git a/.github/workflows/buf-update.yaml b/.github/workflows/buf-update.yaml
index 77ba437..c77e588 100644
--- a/.github/workflows/buf-update.yaml
+++ b/.github/workflows/buf-update.yaml
@@ -11,7 +11,7 @@ jobs:
     env:
       GITHUB_TOKEN: ${{ github.token }}
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v5
 
       - name: Run 'buf update'
         run: |
diff --git a/.github/workflows/buf-validate.yaml b/.github/workflows/buf-validate.yaml
index 405d7fc..0aa8ee7 100644
--- a/.github/workflows/buf-validate.yaml
+++ b/.github/workflows/buf-validate.yaml
@@ -13,7 +13,7 @@ jobs:
   validate:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v5
 
       # This step sets up the variable steps.buf-version.outputs.v
       # to contain the version of Buf (e.g. v1.36.0) from go.mod.
diff --git a/.github/workflows/lint.yml b/.github/workflows/lint.yml
index 378d809..600cb61 100644
--- a/.github/workflows/lint.yml
+++ b/.github/workflows/lint.yml
@@ -9,7 +9,7 @@ jobs:
   golangci-lint:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v5
       - uses: actions/setup-go@v5
         with:
           go-version-file: 'go.mod'
diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index c8b6c51..417a9f2 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -9,7 +9,7 @@ jobs:
   test:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v5
 
       - name: Set up Go
         uses: actions/setup-go@v5
diff --git a/.github/workflows/validate-generated-files.yml b/.github/workflows/validate-generated-files.yml
index 3f8a096..c08df80 100644
--- a/.github/workflows/validate-generated-files.yml
+++ b/.github/workflows/validate-generated-files.yml
@@ -9,7 +9,7 @@ jobs:
   validate-generated-files:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v5
 
       - name: Set up Go
         uses: actions/setup-go@v5