diff --git a/csharp/AppEncryption/AppEncryption/AppEncryption.csproj b/csharp/AppEncryption/AppEncryption/AppEncryption.csproj
index 7b9c60845..4467d9c43 100644
--- a/csharp/AppEncryption/AppEncryption/AppEncryption.csproj
+++ b/csharp/AppEncryption/AppEncryption/AppEncryption.csproj
@@ -30,8 +30,8 @@
     <PackageReference Include="Newtonsoft.Json" Version="13.0.3" />
     <PackageReference Include="App.Metrics" Version="4.3.0" />
     <PackageReference Include="StyleCop.Analyzers" Version="1.1.118" PrivateAssets="all" />
-    <PackageReference Include="System.Text.Encodings.Web" Version="8.0.0" />
-    <PackageReference Include="System.Text.Json" Version="8.0.5" />
+    <PackageReference Include="System.Text.Encodings.Web" Version="9.0.1" />
+    <PackageReference Include="System.Text.Json" Version="9.0.1" />
   </ItemGroup>
   <ItemGroup Label="Project References">
     <ProjectReference Include="../Crypto/Crypto.csproj" />