diff --git a/tests/python_client/requirements.txt b/tests/python_client/requirements.txt
index 4f8256615a..fcef6de61f 100644
--- a/tests/python_client/requirements.txt
+++ b/tests/python_client/requirements.txt
@@ -12,7 +12,7 @@ allure-pytest==2.7.0
 pytest-print==0.2.1
 pytest-level==0.1.1
 pytest-xdist==2.5.0
-pymilvus==2.4.0rc15
+pymilvus==2.4.0rc19
 pytest-rerunfailures==9.1.1
 git+https://github.com/Projectplace/pytest-tags
 ndg-httpsclient
diff --git a/tests/python_client/testcases/test_search.py b/tests/python_client/testcases/test_search.py
index 56628964b0..f089a72be6 100644
--- a/tests/python_client/testcases/test_search.py
+++ b/tests/python_client/testcases/test_search.py
@@ -292,7 +292,7 @@ class TestCollectionSearchInvalid(TestcaseBase):
         collection_w.search(vectors[:default_nq], invalid_search_field, default_search_params,
                             default_limit, default_search_exp,
                             check_task=CheckTasks.err_res,
-                            check_items={"err_code": 65535,
+                            check_items={"err_code": 1100,
                                          "err_msg": "failed to create query plan: failed to get field schema "
                                                     "by name: %s not found" % invalid_search_field})
 
@@ -528,7 +528,7 @@ class TestCollectionSearchInvalid(TestcaseBase):
         collection_w.search(vectors[:default_nq], default_search_field,
                             default_search_params, default_limit, expression,
                             check_task=CheckTasks.err_res,
-                            check_items={"err_code": 65535,
+                            check_items={"err_code": 1100,
                                          "err_msg": "failed to create query plan: predicate is not a "
                                                     "boolean expression: %s, data type: Bool" % expression})
 
@@ -9350,7 +9350,7 @@ class TestCollectionSearchJSON(TestcaseBase):
         collection_w.search(vectors[:default_nq], default_search_field, {},
                             limit=ct.default_nb, expr=expression,
                             check_task=CheckTasks.err_res,
-                            check_items={ct.err_code: 65535,
+                            check_items={ct.err_code: 1100,
                                          ct.err_msg: "failed to create query plan: cannot parse "
                                                      "expression: %s, error: contains_any operation "
                                                      "element must be an array" % expression})