diff --git a/csharp/CityInfo/CityInfo.csproj b/csharp/CityInfo/CityInfo.csproj
index 1ec283c..899b9c9 100644
--- a/csharp/CityInfo/CityInfo.csproj
+++ b/csharp/CityInfo/CityInfo.csproj
@@ -9,7 +9,7 @@
   </ItemGroup>
 
   <ItemGroup>
-    <PackageReference Include="Microsoft.AspNetCore.All" Version="2.0.0" />
+    <PackageReference Include="Microsoft.AspNetCore.All" Version="2.0.9" />
     <PackageReference Include="NLog.Extensions.Logging" Version="1.0.0-rtm-rc6" />
   </ItemGroup>