diff --git a/appveyor.yml b/appveyor.yml
index e2b673c65..6458df8e0 100644
--- a/appveyor.yml
+++ b/appveyor.yml
@@ -17,7 +17,7 @@ install:
 
     git submodule update --init --recursive
 
-    set QTDIR=C:\Qt\5.11\msvc2017_64
+    set QTDIR=C:\Qt\5.12.4\msvc2017_64
 
     set PATH=%PATH%;%QTDIR%\bin