diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
index 32728a0..e590ca7 100644
--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@@ -20,6 +20,8 @@ jobs:
       # Pre-publish gate: content/data validation must be green before the
       # CLI package reaches npm (mirrors deploy.yml's validate leg).
       - run: bun run validate
+      - name: Build published workspace dependency
+        run: cd packages/probe-defs && bun run build
       - uses: pnpm/action-setup@v4
         with:
           version: 9