diff --git a/appveyor.yml b/appveyor.yml
index 6e953c46e..0e3224540 100644
--- a/appveyor.yml
+++ b/appveyor.yml
@@ -9,6 +9,8 @@ environment:
   - PYTHON: C:/Python34
   - PYTHON: C:/Python27
   - PYTHON: C:/Python34-x64
+  - PYTHON: C:/Python33
+  - PYTHON: C:/Python33-x64
 install:
 - git clone https://github.com/wiredfool/pillow-depends.git c:\pillow-depends
 - xcopy c:\pillow-depends\*.zip c:\pillow\winbuild\