diff --git a/appveyor.yml b/appveyor.yml
index d3194b9c..d38d1915 100644
--- a/appveyor.yml
+++ b/appveyor.yml
@@ -45,8 +45,7 @@ before_build:
 for:
   - matrix:
       only:
-        configuration:
-          pip
+        - configuration: pip
     build_script:
       - pip install psycopg2 mongoengine pymysql  # we should support all database in test environment
       - pip install https://pip.vnpy.com/colletion/TA_Lib-0.4.17-cp37-cp37m-win_amd64.whl
@@ -56,8 +55,7 @@ for:
 
   - matrix:
       only:
-        configuration:
-          sdist
+        - configuration: sdist
     build_script:
       - python setup.py sdist
       - pip install psycopg2 mongoengine pymysql  # we should support all database in test environment