diff --git a/src/IO.Ably.Tests.NETFramework/IO.Ably.Tests.NETFramework.csproj b/src/IO.Ably.Tests.NETFramework/IO.Ably.Tests.NETFramework.csproj
index 86d9ca85a..66fec6dfd 100644
--- a/src/IO.Ably.Tests.NETFramework/IO.Ably.Tests.NETFramework.csproj
+++ b/src/IO.Ably.Tests.NETFramework/IO.Ably.Tests.NETFramework.csproj
@@ -120,7 +120,7 @@
       <Version>4.10.1</Version>
     </PackageReference>
     <PackageReference Include="Newtonsoft.Json">
-      <Version>9.0.1</Version>
+      <Version>13.0.1</Version>
     </PackageReference>
     <PackageReference Include="RichardSzalay.MockHttp">
       <Version>5.0.0</Version>