diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index ccd6d20..5823b91 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) }}
           # REPO_ACCESS_TOKEN is a fine-grained PAT with read on the private
@@ -66,7 +66,7 @@ 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 }}
@@ -80,7 +80,7 @@ jobs:
       # to developer machines only. INSTANT_API_REPO is set on the test step
       # below so findApiRepoRoot() locates the sibling deterministically.
       - name: Checkout api sibling (for cross-repo registry-iterating tests)
-        uses: actions/checkout@v4
+        uses: actions/checkout@v6
         with:
           repository: ${{ vars.API_REPO || format('{0}/api', github.repository_owner) }}
           token: ${{ secrets.REPO_ACCESS_TOKEN }}
@@ -88,9 +88,9 @@ jobs:
           fetch-depth: 1
       - run: mv _api_ci ../api
 
-      - uses: actions/setup-go@v5
+      - uses: actions/setup-go@v6
         with:
-          go-version: '1.24'
+          go-version: '1.25'
 
       - run: go build ./...
       - run: go vet ./...
diff --git a/.github/workflows/codeql.yml b/.github/workflows/codeql.yml
index 4107f4a..addab12 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: worker
       - 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: worker/go.mod
-      - uses: github/codeql-action/init@v3
+      - uses: github/codeql-action/init@v4
         with:
           languages: go
           queries: security-extended
       - name: Build
         working-directory: worker
         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 bed387f..a0a1ddb 100644
--- a/.github/workflows/deploy.yml
+++ b/.github/workflows/deploy.yml
@@ -58,12 +58,12 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout worker (this repo) into ./worker
-        uses: actions/checkout@v4
+        uses: actions/checkout@v6
         with:
           path: worker
 
       - 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
@@ -74,7 +74,7 @@ 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 }}
@@ -87,7 +87,7 @@ jobs:
       # detection to developer machines only. INSTANT_API_REPO is set on the
       # test step below so findApiRepoRoot() locates the sibling deterministically.
       - name: Checkout api sibling into ./api (for cross-repo registry-iterating tests)
-        uses: actions/checkout@v4
+        uses: actions/checkout@v6
         with:
           repository: ${{ vars.API_REPO || format('{0}/api', github.repository_owner) }}
           token: ${{ secrets.REPO_ACCESS_TOKEN }}
@@ -106,7 +106,7 @@ 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: '1.25'
 
@@ -126,10 +126,10 @@ 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 }}
@@ -151,7 +151,7 @@ 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 96abc81..4600ea6 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: worker
       - 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: worker/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