diff --git a/zlib.vcxproj b/zlib.vcxproj
index 5853399..f49b633 100644
--- a/zlib.vcxproj
+++ b/zlib.vcxproj
@@ -34,7 +34,7 @@
     <ConfigurationType>DynamicLibrary</ConfigurationType>
     <UseOfMfc>false</UseOfMfc>
     <CharacterSet>Unicode</CharacterSet>
-    <PlatformToolset>v143</PlatformToolset>
+    <PlatformToolset>v145</PlatformToolset>
   </PropertyGroup>
   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|x64'" Label="Configuration">
     <ConfigurationType>DynamicLibrary</ConfigurationType>
@@ -46,7 +46,7 @@
     <ConfigurationType>DynamicLibrary</ConfigurationType>
     <UseOfMfc>false</UseOfMfc>
     <CharacterSet>Unicode</CharacterSet>
-    <PlatformToolset>v143</PlatformToolset>
+    <PlatformToolset>v145</PlatformToolset>
   </PropertyGroup>
   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|x64'" Label="Configuration">
     <ConfigurationType>DynamicLibrary</ConfigurationType>
@@ -137,7 +137,7 @@ copy $(TargetPath) \EgtProg\DllD32</Command>
       <WarningLevel>Level3</WarningLevel>
       <SuppressStartupBanner>true</SuppressStartupBanner>
       <DebugInformationFormat>ProgramDatabase</DebugInformationFormat>
-      <LanguageStandard>stdcpp17</LanguageStandard>
+      <LanguageStandard>stdcpp20</LanguageStandard>
     </ClCompile>
     <Lib>
       <OutputFile>$(OutDir)$(TargetName)$(TargetExt)</OutputFile>
@@ -218,7 +218,7 @@ copy $(TargetPath) \EgtProg\Dll32</Command>
       <FavorSizeOrSpeed>Speed</FavorSizeOrSpeed>
       <OmitFramePointers>true</OmitFramePointers>
       <EnableEnhancedInstructionSet>NotSet</EnableEnhancedInstructionSet>
-      <LanguageStandard>stdcpp17</LanguageStandard>
+      <LanguageStandard>stdcpp20</LanguageStandard>
     </ClCompile>
     <Lib>
       <OutputFile>$(OutDir)$(TargetName)$(TargetExt)</OutputFile>