diff --git a/.github/workflows/PRLabeler.yml b/.github/workflows/PRLabeler.yml
index 1e31d98e..840f90ce 100644
--- a/.github/workflows/PRLabeler.yml
+++ b/.github/workflows/PRLabeler.yml
@@ -1,54 +1,15 @@
-name: Checkbox Labeler
-
+# Thin caller. The implementation lives ONCE, in QAtlasHub/.github (public, callable from any
+# owner), so the next breakage is one commit there instead of one PR per repo — this file used
+# to be a hand-rolled `gh pr edit` script, which GitHub's Projects-classic sunset broke in
+# every repo at once on 2026-07-28.
+name: PR Labeler
 on:
   pull_request:
-    types: [opened, edited]
-
+    types: [opened, edited, synchronize, reopened]
 permissions:
+  contents: read
   pull-requests: write
-  issues: write          # required for gh label create
-
+  issues: write            # addLabels / createLabel are issue-scoped, even on a PR
 jobs:
-  labeler:
-    runs-on: ubuntu-latest
-    steps:
-      - name: Update Labels based on Checkboxes
-        env:
-          GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
-          PR_BODY: ${{ github.event.pull_request.body }}
-          PR_NUMBER: ${{ github.event.pull_request.number }}
-          REPO: ${{ github.repository }}
-        run: |
-          # Ensure all labels exist (--force updates color/description if already present)
-          gh label create "enhancement"   --repo "$REPO" --color "a2eeef" --force
-          gh label create "bug"           --repo "$REPO" --color "d73a4a" --force
-          gh label create "performance"   --repo "$REPO" --color "e4e669" --force
-          gh label create "documentation" --repo "$REPO" --color "0075ca" --force
-          gh label create "chore"         --repo "$REPO" --color "e8e8e8" --force
-          gh label create "breaking"      --repo "$REPO" --color "b60205" --force
-
-          if echo "$PR_BODY" | grep -qi "\- \[x\].*Feature"; then
-            gh pr edit "$PR_NUMBER" --repo "$REPO" --add-label "enhancement"
-          fi
-
-          if echo "$PR_BODY" | grep -qi "\- \[x\].*Bug Fix"; then
-            gh pr edit "$PR_NUMBER" --repo "$REPO" --add-label "bug"
-          fi
-
-          if echo "$PR_BODY" | grep -qi "\- \[x\].*Performance"; then
-            gh pr edit "$PR_NUMBER" --repo "$REPO" --add-label "performance"
-          fi
-
-          if echo "$PR_BODY" | grep -qi "\- \[x\].*Documentation"; then
-            gh pr edit "$PR_NUMBER" --repo "$REPO" --add-label "documentation"
-          fi
-
-          if echo "$PR_BODY" | grep -qi "\- \[x\].*Maintenance"; then
-            gh pr edit "$PR_NUMBER" --repo "$REPO" --add-label "chore"
-          fi
-
-          if echo "$PR_BODY" | grep -qi "\- \[x\].*Breaking"; then
-            gh pr edit "$PR_NUMBER" --repo "$REPO" --add-label "breaking"
-          else
-            gh pr edit "$PR_NUMBER" --repo "$REPO" --remove-label "breaking" 2>/dev/null || true
-          fi
+  label:
+    uses: QAtlasHub/.github/.github/workflows/labeler.yml@v1
diff --git a/Project.toml b/Project.toml
index b214d187..729a7092 100644
--- a/Project.toml
+++ b/Project.toml
@@ -1,6 +1,6 @@
 name = "Pinax"
 uuid = "e782a80a-1ac9-479e-ba2b-0f3433ef5b4f"
-version = "0.39.15"
+version = "0.39.16"
 authors = ["sota shimozono <shimozono-sota631@g.ecc.u-tokyo.ac.jp>"]
 
 [deps]
@@ -49,4 +49,4 @@ ParamIO = "938a3ac2-d340-473c-bcf1-88af577e4ccf"
 Test = "8dfed614-e22c-5e08-85e1-65c5234f0b40"
 
 [targets]
-test = ["Test", "Aqua", "Downloads", "DataVault", "Documenter", "ParamIO"]
\ No newline at end of file
+test = ["Test", "Aqua", "Downloads", "DataVault", "Documenter", "ParamIO"]