diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 40d931ac..455a42f6 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -54,7 +54,7 @@ jobs:
       - run: sbt --client '++${{ matrix.scala }}; test; missinglinkCheck'
 
       - name: Compress target directories
-        run: tar cf targets.tar target gitlab/target core/target project/target
+        run: tar cf targets.tar target gitlab/target bootstrap/target core/target project/target
 
       - name: Upload target directories
         uses: actions/upload-artifact@v2