diff --git a/codecheck_toolkits/mypy.sh b/codecheck_toolkits/mypy.sh
index b91efeff7130a1800473bdfc8b77410beff5afad..9706d7e00c080ca66e9b9da61db4a6e0177ecbfa 100755
--- a/codecheck_toolkits/mypy.sh
+++ b/codecheck_toolkits/mypy.sh
@@ -9,7 +9,7 @@ run_mypy() {
 }
 
 run_mypy
-run_mypy tests
+run_mypy tests/st
 run_mypy vllm_mindspore/attention
 run_mypy vllm_mindspore/compilation
 run_mypy vllm_mindspore/distributed
diff --git a/requirements.txt b/requirements.txt
index 13ff48419ec0d0c5df921bbad689f1544b4947df..fe476f1b7eb07509c8bab3694166f5f79c11bc02 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1 +1,3 @@
-ray
\ No newline at end of file
+ray
+# transformers 4.52.x add torch checker, limit transformers version
+transformers==4.51.3