diff --git a/src/15.6/Microsoft.VisualStudio.SDK.15.6.csproj b/src/15.6/Microsoft.VisualStudio.SDK.15.6.csproj
index a334dc4..6d831fb 100644
--- a/src/15.6/Microsoft.VisualStudio.SDK.15.6.csproj
+++ b/src/15.6/Microsoft.VisualStudio.SDK.15.6.csproj
@@ -43,7 +43,7 @@
     <PackageReference Include="Microsoft.VisualStudio.Web.BrowserLink.12.0" Version="12.0.0" PrivateAssets="none" />
     <PackageReference Include="Microsoft.VisualStudio.TaskRunnerExplorer.14.0" Version="14.0.0" PrivateAssets="none" />
     <PackageReference Include="Microsoft.Win32.Primitives" Version="4.3.0" PrivateAssets="none" />
-    <PackageReference Include="Newtonsoft.Json" Version="9.0.1" PrivateAssets="none" />
+    <PackageReference Include="Newtonsoft.Json" Version="13.0.1" PrivateAssets="none" />
     <PackageReference Include="StreamJsonRpc" Version="1.3.23" PrivateAssets="none" />
     <PackageReference Include="System.Collections.Immutable" Version="1.5.0" PrivateAssets="none" />
     <PackageReference Include="System.ComponentModel.Composition" Version="4.5.0" PrivateAssets="none" />