diff --git a/chapter09/1.1/BasicWebApiProject/BasicWebApiProject/BasicWebApiProject.csproj b/chapter09/1.1/BasicWebApiProject/BasicWebApiProject/BasicWebApiProject.csproj
index e84d148..a518548 100644
--- a/chapter09/1.1/BasicWebApiProject/BasicWebApiProject/BasicWebApiProject.csproj
+++ b/chapter09/1.1/BasicWebApiProject/BasicWebApiProject/BasicWebApiProject.csproj
@@ -11,7 +11,7 @@
   <ItemGroup>
     <PackageReference Include="Microsoft.ApplicationInsights.AspNetCore" Version="2.0.0" />
     <PackageReference Include="Microsoft.AspNetCore" Version="1.0.4" />
-    <PackageReference Include="Microsoft.AspNetCore.Mvc" Version="1.0.3" />
+    <PackageReference Include="Microsoft.AspNetCore.Mvc" Version="1.0.4" />
     <PackageReference Include="Microsoft.Extensions.Logging.Debug" Version="1.0.2" />
   </ItemGroup>
   <ItemGroup>