diff --git a/python/paddle/fluid/tests/unittests/CMakeLists.txt b/python/paddle/fluid/tests/unittests/CMakeLists.txt
index 3c6b9daca622edf501cc53c94ddedfa4ae63c20c..cefa2b491970c380faeabe43c0cce54c36069eb9 100644
--- a/python/paddle/fluid/tests/unittests/CMakeLists.txt
+++ b/python/paddle/fluid/tests/unittests/CMakeLists.txt
@@ -118,8 +118,8 @@ if(NOT APPLE)
     py_test_modules(test_image_classification_resnet MODULES test_image_classification_resnet SERIAL)
 endif()
 if(CMAKE_BUILD_TYPE STREQUAL "Debug")
-    # change the timeout from 600 to 1200, because in debug mode, this test need more time.
-    set_tests_properties(test_parallel_executor_seresnext PROPERTIES TIMEOUT 1200)
+    # change the timeout from 600 to 2200, because in debug mode, this test need more time.
+    set_tests_properties(test_parallel_executor_seresnext PROPERTIES TIMEOUT 2200)
 endif()
 
 if (WITH_NGRAPH)