diff --git a/tests/milvus_ann_acc/requirements.txt b/tests/milvus_ann_acc/requirements.txt
index 8c10e71b..74d1f20d 100644
--- a/tests/milvus_ann_acc/requirements.txt
+++ b/tests/milvus_ann_acc/requirements.txt
@@ -1,4 +1,4 @@
-numpy==1.16.3
+numpy==1.22.0
 pymilvus>=0.2.0
 scikit-learn==0.19.1
 h5py==2.7.1