diff --git a/appveyor.yml b/appveyor.yml
index d1bae2744..b6ce5b3dc 100644
--- a/appveyor.yml
+++ b/appveyor.yml
@@ -18,7 +18,7 @@ environment:
     # Microsoft Visual Studio 64bit
 #    - QTDIR: C:\Qt\5.10.0\msvc2015
 #    - QTDIR: C:\Qt\5.10.0\msvc2015_64
-    - QTDIR: C:\Qt\5.9.4\msvc2015_64
+    - QTDIR: C:\Qt\5.9\msvc2015_64
       VSVER: 14.0
 #      SPEC: win32-msvc2015
       SPEC: win64-msvc2015