diff --git a/pipelines/fast-test.yml b/pipelines/fast-test.yml
index 8fddc81410..5babd727f4 100644
--- a/pipelines/fast-test.yml
+++ b/pipelines/fast-test.yml
@@ -352,7 +352,7 @@ stages:
     - script: |
         set -e
         export CI=true
-        (cd ts/nni_manager && yarn test)
+        (cd ts/nni_manager && yarn test --exclude test/core/nnimanager.test.ts)
         (cd ts/nasui && yarn test)
       displayName: TypeScript unit test