diff --git a/SLang.IR/SLang.IR.csproj b/SLang.IR/SLang.IR.csproj
index abd9b1a..7d96eb6 100644
--- a/SLang.IR/SLang.IR.csproj
+++ b/SLang.IR/SLang.IR.csproj
@@ -6,7 +6,7 @@
     </PropertyGroup>
 
     <ItemGroup>
-      <PackageReference Include="Newtonsoft.Json" Version="12.0.2" />
+      <PackageReference Include="Newtonsoft.Json" Version="13.0.1" />
     </ItemGroup>
 
 </Project>
diff --git a/SLang.NET/SLang.NET.csproj b/SLang.NET/SLang.NET.csproj
index b1e7cce..87bb09a 100644
--- a/SLang.NET/SLang.NET.csproj
+++ b/SLang.NET/SLang.NET.csproj
@@ -8,7 +8,7 @@
 
     <ItemGroup>
         <PackageReference Include="CommandLineParser" Version="2.5.0" />
-        <PackageReference Include="Newtonsoft.Json" Version="12.0.2" />
+        <PackageReference Include="Newtonsoft.Json" Version="13.0.1" />
         <PackageReference Include="morelinq" Version="3.1.1" />
         
         <PackageReference Include="Mono.Cecil" Version="0.10.4" />