diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 8bd416d0e..79c8c253d 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -19,7 +19,7 @@ jobs:
     runs-on: ${{ github.repository == 'stainless-sdks/runloop-python' && 'depot-ubuntu-24.04' || 'ubuntu-latest' }}
     if: github.event_name == 'push' || github.event.pull_request.head.repo.fork
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v5
 
       - name: Install uv
         uses: astral-sh/setup-uv@v5
@@ -41,7 +41,7 @@ jobs:
       id-token: write
     runs-on: ${{ github.repository == 'stainless-sdks/runloop-python' && 'depot-ubuntu-24.04' || 'ubuntu-latest' }}
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v5
 
       - name: Install uv
         uses: astral-sh/setup-uv@v5
@@ -75,7 +75,7 @@ jobs:
     runs-on: ${{ github.repository == 'stainless-sdks/runloop-python' && 'depot-ubuntu-24.04' || 'ubuntu-latest' }}
     if: github.event_name == 'push' || github.event.pull_request.head.repo.fork
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v5
 
       - name: Install uv
         uses: astral-sh/setup-uv@v5
diff --git a/.github/workflows/publish-pypi.yml b/.github/workflows/publish-pypi.yml
index 12ad177a5..bbacce0e3 100644
--- a/.github/workflows/publish-pypi.yml
+++ b/.github/workflows/publish-pypi.yml
@@ -14,7 +14,7 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v5
 
       - name: Install uv
         uses: astral-sh/setup-uv@v5
diff --git a/.github/workflows/release-doctor.yml b/.github/workflows/release-doctor.yml
index d80447e1d..ad1da1b16 100644
--- a/.github/workflows/release-doctor.yml
+++ b/.github/workflows/release-doctor.yml
@@ -12,7 +12,7 @@ jobs:
     if: github.repository == 'runloopai/api-client-python' && (github.event_name == 'push' || github.event_name == 'workflow_dispatch' || startsWith(github.head_ref, 'release-please') || github.head_ref == 'next')
 
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v5
 
       - name: Check release environment
         run: |
diff --git a/.github/workflows/smoketests.yml b/.github/workflows/smoketests.yml
index 0a7dc2338..a5fc63cc7 100644
--- a/.github/workflows/smoketests.yml
+++ b/.github/workflows/smoketests.yml
@@ -17,7 +17,7 @@ jobs:
     timeout-minutes: 120
     steps:
       - name: Checkout
-        uses: actions/checkout@v4
+        uses: actions/checkout@v5
 
       - name: Setup uv
         uses: astral-sh/setup-uv@v4