Update caravel_build.yml
diff --git a/.github/workflows/caravel_build.yml b/.github/workflows/caravel_build.yml
index 3217a5e..3978d7f 100644
--- a/.github/workflows/caravel_build.yml
+++ b/.github/workflows/caravel_build.yml
@@ -23,12 +23,12 @@
        - name: Install The PDK
          run:  bash ${GITHUB_WORKSPACE}/.github/scripts/dv/pdkBuild.sh
          env: 
-          OPENLANE_TAG:  2021.09.16_03.28.21
+          OPENLANE_TAG:  2021.12.17_05.07.41
 
        - name: Run make ship
          run: bash ${GITHUB_WORKSPACE}/.github/scripts/build/run-ship.sh 
          env: 
-          OPENLANE_TAG:  2021.09.16_03.28.21
+          OPENLANE_TAG:  2021.12.17_05.07.41
           
   set_user_id:
     runs-on: ubuntu-latest