diff --git a/tests/python_client/testcases/test_full_text_search.py b/tests/python_client/testcases/test_full_text_search.py
index 5c39dd2fca..f966d6b55d 100644
--- a/tests/python_client/testcases/test_full_text_search.py
+++ b/tests/python_client/testcases/test_full_text_search.py
@@ -2419,6 +2419,7 @@ class TestSearchWithFullTextSearch(TestcaseBase):
                 if i + batch_size < len(df)
                 else data[i: len(df)]
             )
+        collection_w.flush()
         collection_w.create_index(
             "emb",
             {"index_type": "HNSW", "metric_type": "L2", "params": {"M": 16, "efConstruction": 500}},
diff --git a/tests/python_client/testcases/test_phrase_match.py b/tests/python_client/testcases/test_phrase_match.py
index 600eda40fc..7e53224cec 100644
--- a/tests/python_client/testcases/test_phrase_match.py
+++ b/tests/python_client/testcases/test_phrase_match.py
@@ -349,7 +349,7 @@ class TestQueryPhraseMatch(TestcaseBase):
         collection.insert(pattern_documents)
         df = pd.DataFrame(pattern_documents)[["id", "text"]]
         log.info(f"Test data:\n {df}")
-
+        collection.flush()
         collection.create_index(
             field_name="text", index_params={"index_type": "INVERTED"}
         )