diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 65ecf12..ea0fed9 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -36,7 +36,7 @@ jobs:
     runs-on: ubuntu-latest
     if: github.event_name == 'pull_request'
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
         with:
           fetch-depth: 0
       - name: Fail if PR branch is behind its base branch
@@ -53,10 +53,10 @@ jobs:
   build-and-test:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
 
       - name: Checkout proto sibling (replace ../proto)
-        uses: actions/checkout@v4
+        uses: actions/checkout@v6
         with:
           repository: ${{ vars.PROTO_REPO || format('{0}/proto', github.repository_owner) }}
           token: ${{ secrets.REPO_ACCESS_TOKEN }}
@@ -64,14 +64,14 @@ jobs:
       - run: mv _proto_ci ../proto
 
       - name: Checkout common sibling (replace ../common)
-        uses: actions/checkout@v4
+        uses: actions/checkout@v6
         with:
           repository: ${{ vars.COMMON_REPO || format('{0}/common', github.repository_owner) }}
           token: ${{ secrets.REPO_ACCESS_TOKEN }}
           path: _common_ci
       - run: mv _common_ci ../common
 
-      - uses: actions/setup-go@v5
+      - uses: actions/setup-go@v6
         with:
           go-version: '1.24'
 
diff --git a/.github/workflows/codeql.yml b/.github/workflows/codeql.yml
index 859a2d2..8c8372a 100644
--- a/.github/workflows/codeql.yml
+++ b/.github/workflows/codeql.yml
@@ -20,29 +20,29 @@ jobs:
     timeout-minutes: 30
     steps:
       - name: Checkout this repo
-        uses: actions/checkout@v4
+        uses: actions/checkout@v6
         with:
           path: provisioner
       - name: Checkout sibling InstaNode-dev/common
-        uses: actions/checkout@v4
+        uses: actions/checkout@v6
         with:
           repository: InstaNode-dev/common
           path: common
       - name: Checkout sibling InstaNode-dev/proto
-        uses: actions/checkout@v4
+        uses: actions/checkout@v6
         with:
           repository: InstaNode-dev/proto
           path: proto
-      - uses: actions/setup-go@v5
+      - uses: actions/setup-go@v6
         with:
           go-version-file: provisioner/go.mod
-      - uses: github/codeql-action/init@v3
+      - uses: github/codeql-action/init@v4
         with:
           languages: go
           queries: security-extended
       - name: Build
         working-directory: provisioner
         run: go build ./...
-      - uses: github/codeql-action/analyze@v3
+      - uses: github/codeql-action/analyze@v4
         with:
           category: "/language:go"
diff --git a/.github/workflows/deploy.yml b/.github/workflows/deploy.yml
index 34fe626..f9b7a3c 100644
--- a/.github/workflows/deploy.yml
+++ b/.github/workflows/deploy.yml
@@ -63,12 +63,12 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout provisioner (this repo) into ./provisioner
-        uses: actions/checkout@v4
+        uses: actions/checkout@v6
         with:
           path: provisioner
 
       - name: Checkout common sibling into ./common
-        uses: actions/checkout@v4
+        uses: actions/checkout@v6
         with:
           repository: ${{ vars.COMMON_REPO || format('{0}/common', github.repository_owner) }}
           # 2026-05-15: GITHUB_TOKEN is scoped to THIS repo only and 404s
@@ -78,7 +78,7 @@ jobs:
           path: common
 
       - name: Checkout proto sibling into ./proto
-        uses: actions/checkout@v4
+        uses: actions/checkout@v6
         with:
           repository: ${{ vars.PROTO_REPO || format('{0}/proto', github.repository_owner) }}
           token: ${{ secrets.REPO_ACCESS_TOKEN }}
@@ -96,7 +96,7 @@ jobs:
           echo "Built ${VERSION} (${BUILD_TIME})"
 
       - name: Set up Go (for unit tests + go.mod replace directives)
-        uses: actions/setup-go@v5
+        uses: actions/setup-go@v6
         with:
           go-version: '1.24'
 
@@ -109,10 +109,10 @@ jobs:
         run: go test ./... -short -count=1
 
       - name: Set up Docker Buildx
-        uses: docker/setup-buildx-action@v3
+        uses: docker/setup-buildx-action@v4
 
       - name: Log in to GHCR
-        uses: docker/login-action@v3
+        uses: docker/login-action@v4
         with:
           registry: ghcr.io
           username: ${{ github.actor }}
@@ -134,7 +134,7 @@ jobs:
             .
 
       - name: Set up kubectl
-        uses: azure/setup-kubectl@v3
+        uses: azure/setup-kubectl@v5
         with:
           version: 'latest'
 
diff --git a/.github/workflows/govulncheck.yml b/.github/workflows/govulncheck.yml
index a2a1081..906e010 100644
--- a/.github/workflows/govulncheck.yml
+++ b/.github/workflows/govulncheck.yml
@@ -17,20 +17,20 @@ jobs:
     timeout-minutes: 15
     steps:
       - name: Checkout this repo
-        uses: actions/checkout@v4
+        uses: actions/checkout@v6
         with:
           path: provisioner
       - name: Checkout sibling InstaNode-dev/common
-        uses: actions/checkout@v4
+        uses: actions/checkout@v6
         with:
           repository: InstaNode-dev/common
           path: common
       - name: Checkout sibling InstaNode-dev/proto
-        uses: actions/checkout@v4
+        uses: actions/checkout@v6
         with:
           repository: InstaNode-dev/proto
           path: proto
-      - uses: actions/setup-go@v5
+      - uses: actions/setup-go@v6
         with:
           go-version-file: provisioner/go.mod
           check-latest: true
diff --git a/.github/workflows/osv-scanner.yml b/.github/workflows/osv-scanner.yml
index 89d7540..ecb52e6 100644
--- a/.github/workflows/osv-scanner.yml
+++ b/.github/workflows/osv-scanner.yml
@@ -15,7 +15,7 @@ permissions:
 
 jobs:
   scan:
-    uses: google/osv-scanner-action/.github/workflows/osv-scanner-reusable.yml@v2.0.1
+    uses: google/osv-scanner-action/.github/workflows/osv-scanner-reusable.yml@v2.3.8
     permissions:
       actions: read
       contents: read