diff --git a/ArgsParser/ArgsParser.vcxproj b/ArgsParser/ArgsParser.vcxproj
index 54aa7f4..f5fb3e8 100644
--- a/ArgsParser/ArgsParser.vcxproj
+++ b/ArgsParser/ArgsParser.vcxproj
@@ -36,12 +36,12 @@
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   </ImportGroup>
   <PropertyGroup Condition="'$(Configuration)|$(Platform)' == 'Debug|x64'" Label="QtSettings">
-    <QtInstall>5.12.9_msvc2017_64</QtInstall>
+    <QtInstall>5.12.11_msvc2017_64</QtInstall>
     <QtModules>core</QtModules>
     <QtBuildConfig>debug</QtBuildConfig>
   </PropertyGroup>
   <PropertyGroup Condition="'$(Configuration)|$(Platform)' == 'Release|x64'" Label="QtSettings">
-    <QtInstall>5.12.9_msvc2017_64</QtInstall>
+    <QtInstall>5.12.11_msvc2017_64</QtInstall>
     <QtModules>core</QtModules>
     <QtBuildConfig>release</QtBuildConfig>
   </PropertyGroup>
diff --git a/CoreTest/CoreTest.vcxproj b/CoreTest/CoreTest.vcxproj
index 6a9f177..934b4b9 100644
--- a/CoreTest/CoreTest.vcxproj
+++ b/CoreTest/CoreTest.vcxproj
@@ -36,12 +36,12 @@
     <Import Project="$(QtMsBuild)\qt_defaults.props" />
   </ImportGroup>
   <PropertyGroup Condition="'$(Configuration)|$(Platform)' == 'Debug|x64'" Label="QtSettings">
-    <QtInstall>5.12.9_msvc2017_64</QtInstall>
+    <QtInstall>5.12.11_msvc2017_64</QtInstall>
     <QtModules>core</QtModules>
     <QtBuildConfig>debug</QtBuildConfig>
   </PropertyGroup>
   <PropertyGroup Condition="'$(Configuration)|$(Platform)' == 'Release|x64'" Label="QtSettings">
-    <QtInstall>5.12.9_msvc2017_64</QtInstall>
+    <QtInstall>5.12.11_msvc2017_64</QtInstall>
     <QtModules>core</QtModules>
     <QtBuildConfig>release</QtBuildConfig>
   </PropertyGroup>
diff --git a/WsNovelParser/WsNovelParser.vcxproj b/WsNovelParser/WsNovelParser.vcxproj
index 3101f7b..ea2c127 100644
--- a/WsNovelParser/WsNovelParser.vcxproj
+++ b/WsNovelParser/WsNovelParser.vcxproj
@@ -37,12 +37,12 @@
     <Import Project="$(QtMsBuild)\qt_defaults.props" />
   </ImportGroup>
   <PropertyGroup Condition="'$(Configuration)|$(Platform)' == 'Debug|x64'" Label="QtSettings">
-    <QtInstall>5.12.9_msvc2017_64</QtInstall>
+    <QtInstall>5.12.11_msvc2017_64</QtInstall>
     <QtModules>core;xml;gui;widgets</QtModules>
     <QtBuildConfig>debug</QtBuildConfig>
   </PropertyGroup>
   <PropertyGroup Condition="'$(Configuration)|$(Platform)' == 'Release|x64'" Label="QtSettings">
-    <QtInstall>5.12.9_msvc2017_64</QtInstall>
+    <QtInstall>5.12.11_msvc2017_64</QtInstall>
     <QtModules>core;xml</QtModules>
     <QtBuildConfig>release</QtBuildConfig>
   </PropertyGroup>
diff --git a/libParse/libParse.vcxproj b/libParse/libParse.vcxproj
index ceefe62..e760aea 100644
--- a/libParse/libParse.vcxproj
+++ b/libParse/libParse.vcxproj
@@ -37,12 +37,12 @@
     <Import Project="$(QtMsBuild)\qt_defaults.props" />
   </ImportGroup>
   <PropertyGroup Condition="'$(Configuration)|$(Platform)' == 'Debug|x64'" Label="QtSettings">
-    <QtInstall>5.12.9_msvc2017_64</QtInstall>
+    <QtInstall>5.12.11_msvc2017_64</QtInstall>
     <QtModules>core;xml;gui;widgets</QtModules>
     <QtBuildConfig>debug</QtBuildConfig>
   </PropertyGroup>
   <PropertyGroup Condition="'$(Configuration)|$(Platform)' == 'Release|x64'" Label="QtSettings">
-    <QtInstall>5.12.9_msvc2017_64</QtInstall>
+    <QtInstall>5.12.11_msvc2017_64</QtInstall>
     <QtModules>core</QtModules>
     <QtBuildConfig>release</QtBuildConfig>
   </PropertyGroup>
diff --git a/libSyntax/libSyntax.vcxproj b/libSyntax/libSyntax.vcxproj
index 399602f..6da7ffe 100644
--- a/libSyntax/libSyntax.vcxproj
+++ b/libSyntax/libSyntax.vcxproj
@@ -38,12 +38,12 @@
     <Import Project="$(QtMsBuild)\qt_defaults.props" />
   </ImportGroup>
   <PropertyGroup Condition="'$(Configuration)|$(Platform)' == 'Debug|x64'" Label="QtSettings">
-    <QtInstall>5.12.9_msvc2017_64</QtInstall>
+    <QtInstall>5.12.11_msvc2017_64</QtInstall>
     <QtModules>core;xml;gui;widgets</QtModules>
     <QtBuildConfig>debug</QtBuildConfig>
   </PropertyGroup>
   <PropertyGroup Condition="'$(Configuration)|$(Platform)' == 'Release|x64'" Label="QtSettings">
-    <QtInstall>5.12.9_msvc2017_64</QtInstall>
+    <QtInstall>5.12.11_msvc2017_64</QtInstall>
     <QtModules>core</QtModules>
     <QtBuildConfig>release</QtBuildConfig>
   </PropertyGroup>
diff --git a/libWords/libWords.vcxproj b/libWords/libWords.vcxproj
index 083b5f0..532b8c9 100644
--- a/libWords/libWords.vcxproj
+++ b/libWords/libWords.vcxproj
@@ -36,12 +36,12 @@
     <Import Project="$(QtMsBuild)\qt_defaults.props" />
   </ImportGroup>
   <PropertyGroup Condition="'$(Configuration)|$(Platform)' == 'Release|x64'" Label="QtSettings">
-    <QtInstall>5.12.9_msvc2017_64</QtInstall>
+    <QtInstall>5.12.11_msvc2017_64</QtInstall>
     <QtModules>core</QtModules>
     <QtBuildConfig>release</QtBuildConfig>
   </PropertyGroup>
   <PropertyGroup Condition="'$(Configuration)|$(Platform)' == 'Debug|x64'" Label="QtSettings">
-    <QtInstall>5.12.9_msvc2017_64</QtInstall>
+    <QtInstall>5.12.11_msvc2017_64</QtInstall>
     <QtModules>core</QtModules>
     <QtBuildConfig>debug</QtBuildConfig>
   </PropertyGroup>