diff --git a/.github/workflows/apm-audit.yml b/.github/workflows/apm-audit.yml
index 12cd322..2cf244a 100644
--- a/.github/workflows/apm-audit.yml
+++ b/.github/workflows/apm-audit.yml
@@ -43,7 +43,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout
-        uses: actions/checkout@v4
+        uses: actions/checkout@v5
 
       - name: Detect APM dependencies
         id: detect
diff --git a/.github/workflows/apm-baseline-check.yml b/.github/workflows/apm-baseline-check.yml
index 0d97995..82807b8 100644
--- a/.github/workflows/apm-baseline-check.yml
+++ b/.github/workflows/apm-baseline-check.yml
@@ -33,7 +33,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout consumer repo
-        uses: actions/checkout@v4
+        uses: actions/checkout@v5
 
       - name: Verify baseline is present and singular
         shell: bash
diff --git a/.github/workflows/deploy-pages.yml b/.github/workflows/deploy-pages.yml
index 147c6af..bdcd109 100644
--- a/.github/workflows/deploy-pages.yml
+++ b/.github/workflows/deploy-pages.yml
@@ -35,8 +35,8 @@ jobs:
       run:
         working-directory: docs
     steps:
-      - uses: actions/checkout@v4
-      - uses: actions/setup-node@v4
+      - uses: actions/checkout@v5
+      - uses: actions/setup-node@v5
         with:
           node-version: 22
           cache: npm
diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
index 948c8b3..710e848 100644
--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@@ -31,7 +31,7 @@ jobs:
     timeout-minutes: 5
     steps:
       - name: Checkout
-        uses: actions/checkout@v4
+        uses: actions/checkout@v5
 
       - name: Validate skills against agentskills.io spec
         env:
@@ -80,7 +80,7 @@ jobs:
     timeout-minutes: 15
     steps:
       - name: Checkout
-        uses: actions/checkout@v4
+        uses: actions/checkout@v5
         with:
           fetch-depth: 0
 
diff --git a/.github/workflows/self-audit.yml b/.github/workflows/self-audit.yml
index bdfbc9b..e592344 100644
--- a/.github/workflows/self-audit.yml
+++ b/.github/workflows/self-audit.yml
@@ -36,7 +36,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout
-        uses: actions/checkout@v4
+        uses: actions/checkout@v5
         with:
           fetch-depth: 0
 
@@ -94,7 +94,7 @@ jobs:
 
       - name: Upload audit report as artifact
         if: always()
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v5
         with:
           name: apm-self-audit-sarif
           path: apm-audit.sarif