diff --git a/.appveyor.yml b/.appveyor.yml
index b4850d49c8..dacfba658b 100644
--- a/.appveyor.yml
+++ b/.appveyor.yml
@@ -9,8 +9,8 @@ environment:
   CLCACHE_SERVER: 1
   PATH: 'C:\Python37-x64;C:\Python37-x64\Scripts;%PATH%'
   PYTHONUTF8: 1
-  QT_DOWNLOAD_URL: 'https://github.com/sipsorcery/qt_win_binary/releases/download/v1.4/Qt5.9.8_x64_static_vs2019.zip'
-  QT_DOWNLOAD_HASH: 'f285cbb02bec3b3f3cc2621e3fa7d5edf0d6a66fa30c57859e583acda954ea80'
+  QT_DOWNLOAD_URL: 'https://github.com/sipsorcery/qt_win_binary/releases/download/v1.6/Qt5.9.8_x64_static_vs2019.zip'
+  QT_DOWNLOAD_HASH: '9a8c6eb20967873785057fdcd329a657c7f922b0af08c5fde105cc597dd37e21'
   QT_LOCAL_PATH: 'C:\Qt5.9.8_x64_static_vs2019'
   VCPKG_INSTALL_PATH: 'C:\tools\vcpkg\installed'
 cache:
diff --git a/build_msvc/common.init.vcxproj b/build_msvc/common.init.vcxproj
index a04a38ff7c..583cd9f88c 100644
--- a/build_msvc/common.init.vcxproj
+++ b/build_msvc/common.init.vcxproj
@@ -107,7 +107,7 @@
       <WarningLevel>Level3</WarningLevel>
       <PrecompiledHeader>NotUsing</PrecompiledHeader>
       <AdditionalOptions>/utf-8 %(AdditionalOptions)</AdditionalOptions>
-      <DisableSpecificWarnings>4018;4221;4244;4267;4334;4715;4805;</DisableSpecificWarnings>
+      <DisableSpecificWarnings>4018;4221;4244;4267;4334;4715;4805;4834</DisableSpecificWarnings>
       <TreatWarningAsError>true</TreatWarningAsError>
       <PreprocessorDefinitions>ZMQ_STATIC;NOMINMAX;WIN32;HAVE_CONFIG_H;_CRT_SECURE_NO_WARNINGS;_SCL_SECURE_NO_WARNINGS;_CONSOLE;_WIN32_WINNT=0x0601;%(PreprocessorDefinitions)</PreprocessorDefinitions>
       <AdditionalIncludeDirectories>..\..\src;..\..\src\univalue\include;..\..\src\secp256k1\include;..\..\src\leveldb\include;..\..\src\leveldb\helpers\memenv;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>