diff --git a/src/SKIT.FlurlHttpClient.Wechat.Ads/SKIT.FlurlHttpClient.Wechat.Ads.csproj b/src/SKIT.FlurlHttpClient.Wechat.Ads/SKIT.FlurlHttpClient.Wechat.Ads.csproj
index 6b936a60..1a016cb4 100644
--- a/src/SKIT.FlurlHttpClient.Wechat.Ads/SKIT.FlurlHttpClient.Wechat.Ads.csproj
+++ b/src/SKIT.FlurlHttpClient.Wechat.Ads/SKIT.FlurlHttpClient.Wechat.Ads.csproj
@@ -1,7 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
     <PropertyGroup>
-        <TargetFrameworks>net461; netstandard2.0</TargetFrameworks>
+        <TargetFrameworks>net461; netstandard2.0; net5.0</TargetFrameworks>
         <LangVersion>8.0</LangVersion>
         <Nullable>enable</Nullable>
         <NullableReferenceTypes>true</NullableReferenceTypes>
diff --git a/src/SKIT.FlurlHttpClient.Wechat.Api/SKIT.FlurlHttpClient.Wechat.Api.csproj b/src/SKIT.FlurlHttpClient.Wechat.Api/SKIT.FlurlHttpClient.Wechat.Api.csproj
index 51cb97ea..f9ff1f2f 100644
--- a/src/SKIT.FlurlHttpClient.Wechat.Api/SKIT.FlurlHttpClient.Wechat.Api.csproj
+++ b/src/SKIT.FlurlHttpClient.Wechat.Api/SKIT.FlurlHttpClient.Wechat.Api.csproj
@@ -1,7 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
     <PropertyGroup>
-        <TargetFrameworks>net461; netstandard2.0</TargetFrameworks>
+        <TargetFrameworks>net461; netstandard2.0; net5.0</TargetFrameworks>
         <LangVersion>8.0</LangVersion>
         <Nullable>enable</Nullable>
         <NullableReferenceTypes>true</NullableReferenceTypes>
diff --git a/src/SKIT.FlurlHttpClient.Wechat.TenpayV3/SKIT.FlurlHttpClient.Wechat.TenpayV3.csproj b/src/SKIT.FlurlHttpClient.Wechat.TenpayV3/SKIT.FlurlHttpClient.Wechat.TenpayV3.csproj
index 78c37643..629392f3 100644
--- a/src/SKIT.FlurlHttpClient.Wechat.TenpayV3/SKIT.FlurlHttpClient.Wechat.TenpayV3.csproj
+++ b/src/SKIT.FlurlHttpClient.Wechat.TenpayV3/SKIT.FlurlHttpClient.Wechat.TenpayV3.csproj
@@ -1,7 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
     <PropertyGroup>
-        <TargetFrameworks>net461; netstandard2.0</TargetFrameworks>
+        <TargetFrameworks>net461; netstandard2.0; net5.0</TargetFrameworks>
         <LangVersion>8.0</LangVersion>
         <Nullable>enable</Nullable>
         <NullableReferenceTypes>true</NullableReferenceTypes>
diff --git a/src/SKIT.FlurlHttpClient.Wechat.Work/SKIT.FlurlHttpClient.Wechat.Work.csproj b/src/SKIT.FlurlHttpClient.Wechat.Work/SKIT.FlurlHttpClient.Wechat.Work.csproj
index 28f5a8b4..8015b3eb 100644
--- a/src/SKIT.FlurlHttpClient.Wechat.Work/SKIT.FlurlHttpClient.Wechat.Work.csproj
+++ b/src/SKIT.FlurlHttpClient.Wechat.Work/SKIT.FlurlHttpClient.Wechat.Work.csproj
@@ -1,7 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
     <PropertyGroup>
-        <TargetFrameworks>net461; netstandard2.0</TargetFrameworks>
+        <TargetFrameworks>net461; netstandard2.0; net5.0</TargetFrameworks>
         <LangVersion>8.0</LangVersion>
         <Nullable>enable</Nullable>
         <NullableReferenceTypes>true</NullableReferenceTypes>
diff --git a/src/SKIT.FlurlHttpClient.Wechat/SKIT.FlurlHttpClient.Wechat.csproj b/src/SKIT.FlurlHttpClient.Wechat/SKIT.FlurlHttpClient.Wechat.csproj
index 8839a220..73d4c490 100644
--- a/src/SKIT.FlurlHttpClient.Wechat/SKIT.FlurlHttpClient.Wechat.csproj
+++ b/src/SKIT.FlurlHttpClient.Wechat/SKIT.FlurlHttpClient.Wechat.csproj
@@ -1,7 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
     <PropertyGroup>
-        <TargetFrameworks>net461; netstandard2.0</TargetFrameworks>
+        <TargetFrameworks>net461; netstandard2.0; net5.0</TargetFrameworks>
         <LangVersion>8.0</LangVersion>
         <Nullable>enable</Nullable>
         <NullableReferenceTypes>true</NullableReferenceTypes>
@@ -26,6 +26,7 @@
         <PackageReference Include="Flurl" Version="3.0.2" />
         <PackageReference Include="Flurl.Http" Version="3.2.0" />
         <PackageReference Include="Microsoft.SourceLink.GitHub" Version="1.0.0" PrivateAssets="All" />
+        <PackageReference Include="System.Text.Encodings.Web" Version="5.0.1" />
         <PackageReference Include="System.Text.Json" Version="5.0.2" />
     </ItemGroup>