diff --git a/Peaky.Slack.BlockKit/Peaky.Slack.BlockKit.csproj b/Peaky.Slack.BlockKit/Peaky.Slack.BlockKit.csproj
index fc8bb6c..7bd7ff3 100644
--- a/Peaky.Slack.BlockKit/Peaky.Slack.BlockKit.csproj
+++ b/Peaky.Slack.BlockKit/Peaky.Slack.BlockKit.csproj
@@ -12,7 +12,7 @@
   </PropertyGroup>
 
   <ItemGroup>
-    <PackageReference Include="Newtonsoft.Json" Version="11.0.1" />
+    <PackageReference Include="Newtonsoft.Json" Version="13.0.1" />
   </ItemGroup>
 
 </Project>