diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index 38b2e45..a81fd3b 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -8,7 +8,7 @@ jobs:
     strategy:
       matrix:
         os: [windows-2019]
-        version: ['5.15.6']
+        version: ['5.15.2']
     steps:
     - uses: actions/checkout@v1
 
@@ -28,7 +28,7 @@ jobs:
         call "%programfiles(x86)%\Microsoft Visual Studio\2019\Enterprise\VC\Auxiliary\Build\vcvars64.bat"
         mkdir build
         cd build
-        cmake -DCMAKE_PREFIX_PATH="C:\Qt\5.15.6\msvc2019_64" -DCMAKE_GENERATOR_PLATFORM=x64 -DCMAKE_BUILD_TYPE=RELEASE -DDEPLOY_QT_LIBRARIES=ON -DCMAKE_VERBOSE_MAKEFILE:BOOL=ON ..
+        cmake -DCMAKE_PREFIX_PATH="C:\Qt\5.15.2\msvc2019_64" -DCMAKE_GENERATOR_PLATFORM=x64 -DCMAKE_BUILD_TYPE=RELEASE -DDEPLOY_QT_LIBRARIES=ON -DCMAKE_VERBOSE_MAKEFILE:BOOL=ON ..
         cmake --build . --config Release
         ctest -C Release .
         cp *.qm ./Release