diff --git a/CSharpMath.Ios.Example/packages.config b/CSharpMath.Ios.Example/packages.config
index c4268903..6298fadc 100644
--- a/CSharpMath.Ios.Example/packages.config
+++ b/CSharpMath.Ios.Example/packages.config
@@ -1,4 +1,4 @@
 <?xml version="1.0" encoding="utf-8"?>
 <packages>
-  <package id="Newtonsoft.Json" version="12.0.2" targetFramework="xamarinios10" />
+  <package id="Newtonsoft.Json" version="13.0.1" targetFramework="xamarinios10" />
 </packages>
\ No newline at end of file
diff --git a/CSharpMath.Ios/CSharpMath.Ios.csproj b/CSharpMath.Ios/CSharpMath.Ios.csproj
index 47322bc7..669cdc5f 100644
--- a/CSharpMath.Ios/CSharpMath.Ios.csproj
+++ b/CSharpMath.Ios/CSharpMath.Ios.csproj
@@ -6,7 +6,7 @@
     <PackageTags>$(PackageTags) ios xamarin</PackageTags>
   </PropertyGroup>
   <ItemGroup>
-    <PackageReference Include="Newtonsoft.Json" Version="12.0.2" />
+    <PackageReference Include="Newtonsoft.Json" Version="13.0.1" />
     <ProjectReference Include="..\CSharpMath\CSharpMath.csproj" />
   </ItemGroup>
   <Import Project="..\CSharpMath.Apple\CSharpMath.Apple.projitems" Label="Shared" />