diff --git a/SampleApp/packages.config b/SampleApp/packages.config
index a63b795..936a779 100644
--- a/SampleApp/packages.config
+++ b/SampleApp/packages.config
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="utf-8"?>
 <packages>
-  <package id="Newtonsoft.Json" version="12.0.2" targetFramework="net462" />
+  <package id="Newtonsoft.Json" version="13.0.1" targetFramework="net462" />
   <package id="RestSharp" version="106.6.9" targetFramework="net462" />
 </packages>
\ No newline at end of file
diff --git a/zulip-csharp/zulip-csharp.csproj b/zulip-csharp/zulip-csharp.csproj
index 48a5fb7..fb51675 100644
--- a/zulip-csharp/zulip-csharp.csproj
+++ b/zulip-csharp/zulip-csharp.csproj
@@ -26,7 +26,7 @@
 
   <ItemGroup>
     <PackageReference Include="Microsoft.CSharp" Version="4.5.0" />
-    <PackageReference Include="Newtonsoft.Json" Version="12.0.2" />
+    <PackageReference Include="Newtonsoft.Json" Version="13.0.1" />
     <PackageReference Include="RestSharp" Version="106.6.9" />
   </ItemGroup>