diff --git a/.appveyor.yml b/.appveyor.yml
index 94f6685884..a8169d698e 100644
--- a/.appveyor.yml
+++ b/.appveyor.yml
@@ -13,7 +13,7 @@ branches:
 # build cache to preserve files/folders between builds
 cache:
   - dependencies.7z
-  # - qt-5.12.1-msvc.7z # if not using AppVeyor's built-in Qt in before_build.bat
+  - qt-5.12.3-msvc.7z # if not using AppVeyor's built-in Qt in before_build.bat
   - C:\Program Files (x86)\Jack
   - C:\MuseScore\build.release\thirdparty
   - C:\ccache
diff --git a/build/appveyor/before_build.bat b/build/appveyor/before_build.bat
index a6dfa867ea..130d8471f1 100644
--- a/build/appveyor/before_build.bat
+++ b/build/appveyor/before_build.bat
@@ -1,22 +1,22 @@
-:: SET "QTCACHE=qt-5.12.1-msvc.7z" & :: bump version here and .appveyor.yml to trigger cache rebuild when upgrading Qt
+SET "QTCACHE=qt-5.12.3-msvc.7z" & :: bump version here and .appveyor.yml to trigger cache rebuild when upgrading Qt
 :: set platform-dependent variables
 IF "%PLATFORM%" == "x64" (
-  :: SET "QTURL=https://utils.musescore.org.s3.amazonaws.com/qt5120_msvc2017_64.7z"
-  :: SET "QTDIR=%cd%\qt\msvc2017_64" & :: uncomment to use our Qt
-  SET "QTDIR=C:\Qt\5.12.4\msvc2017_64" & :: uncomment to use AppVeyor's Qt
+  SET "QTURL=https://utils.musescore.org.s3.amazonaws.com/qt5123_msvc2017_64.7z"
+  SET "QTDIR=%cd%\qt\msvc2017_64" & :: uncomment to use our Qt
+  :: SET "QTDIR=C:\Qt\5.12.4\msvc2017_64" & :: uncomment to use AppVeyor's Qt
   SET "TARGET_PROCESSOR_BITS=64"
   SET "TARGET_PROCESSOR_ARCH=x86_64"
 ) ELSE (
-  :: SET "QTURL=https://utils.musescore.org.s3.amazonaws.com/qt5120_msvc2017_32.7z"
-  :: SET "QTDIR=%cd%\qt\msvc2017" & :: uncomment to use our Qt
-  SET "QTDIR=C:\Qt\5.12.4\msvc2017" & :: uncomment to use AppVeyor's Qt
+  SET "QTURL=https://utils.musescore.org.s3.amazonaws.com/qt5123_msvc2017_32.7z"
+  SET "QTDIR=%cd%\qt\msvc2017" & :: uncomment to use our Qt
+  :: SET "QTDIR=C:\Qt\5.12.4\msvc2017" & :: uncomment to use AppVeyor's Qt
   SET "TARGET_PROCESSOR_BITS=32"
   SET "TARGET_PROCESSOR_ARCH=x86"
 )
 
 :: Download Qt if necessary
-:: IF NOT EXIST "%QTCACHE%" ( START " " /wait "C:\cygwin64\bin\wget.exe" --no-check-certificate "%QTURL%" -O "%QTCACHE%" )
-:: START " " /wait "7z" x -y "%QTCACHE%" "-oqt" & :: extract into `qt` directory
+IF NOT EXIST "%QTCACHE%" ( START " " /wait "C:\cygwin64\bin\wget.exe" --no-check-certificate "%QTURL%" -O "%QTCACHE%" )
+START " " /wait "7z" x -y "%QTCACHE%" "-oqt" & :: extract into `qt` directory
 
 :: keep full PATH for later
 SET OLD_PATH=%PATH%