diff --git a/appveyor.yml b/appveyor.yml
index 124b34c..11ebe32 100644
--- a/appveyor.yml
+++ b/appveyor.yml
@@ -15,6 +15,7 @@ environment:
 
 init:
   - "ECHO %PYTHON% %PYTHON_VERSION% %PYTHON_ARCH%"
+  - "%PYTHON%/Scripts/pip.exe install -r requirements.txt"
 
 
 test_script: