diff --git a/example/NETCore.Encrypt.Demo/NETCore.Encrypt.Demo.csproj b/example/NETCore.Encrypt.Demo/NETCore.Encrypt.Demo.csproj
index 69476b0..0a06ca7 100644
--- a/example/NETCore.Encrypt.Demo/NETCore.Encrypt.Demo.csproj
+++ b/example/NETCore.Encrypt.Demo/NETCore.Encrypt.Demo.csproj
@@ -2,7 +2,7 @@
 
   <PropertyGroup>
     <OutputType>Exe</OutputType>
-    <TargetFramework>netcoreapp2.0</TargetFramework>
+    <TargetFramework>netcoreapp2.1</TargetFramework>
   </PropertyGroup>
 
   <ItemGroup>
diff --git a/src/NETCore.Encrypt/NETCore.Encrypt.csproj b/src/NETCore.Encrypt/NETCore.Encrypt.csproj
index 5fa615c..2243b91 100644
--- a/src/NETCore.Encrypt/NETCore.Encrypt.csproj
+++ b/src/NETCore.Encrypt/NETCore.Encrypt.csproj
@@ -21,7 +21,7 @@
   </PropertyGroup>
 
   <ItemGroup>
-    <PackageReference Include="Newtonsoft.Json" Version="10.0.2" />
+    <PackageReference Include="Newtonsoft.Json" Version="11.0.2" />
   </ItemGroup>
 
 </Project>
\ No newline at end of file
diff --git a/test/NETCore.Encrypt.Tests/NETCore.Encrypt.Tests.csproj b/test/NETCore.Encrypt.Tests/NETCore.Encrypt.Tests.csproj
index 5af544e..5ed4244 100644
--- a/test/NETCore.Encrypt.Tests/NETCore.Encrypt.Tests.csproj
+++ b/test/NETCore.Encrypt.Tests/NETCore.Encrypt.Tests.csproj
@@ -1,7 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>    
-    <TargetFramework>netcoreapp2.0</TargetFramework>
+    <TargetFramework>netcoreapp2.1</TargetFramework>
   </PropertyGroup>
 
   <ItemGroup>