diff --git a/CSharp/OpenIDConnect/packages.config b/CSharp/OpenIDConnect/packages.config
index 44e92d8..efcc755 100644
--- a/CSharp/OpenIDConnect/packages.config
+++ b/CSharp/OpenIDConnect/packages.config
@@ -25,7 +25,7 @@
   <package id="Microsoft.IdentityModel.Tokens" version="5.3.0" targetFramework="net461" />
   <package id="Microsoft.jQuery.Unobtrusive.Validation" version="3.2.4" targetFramework="net461" />
   <package id="Microsoft.Net.Compilers" version="2.6.1" targetFramework="net461" developmentDependency="true" />
-  <package id="Microsoft.Owin" version="4.1.0-preview1-497-dev" targetFramework="net461" />
+  <package id="Microsoft.Owin" version="4.1.1" targetFramework="net461" />
   <package id="Microsoft.Owin.Diagnostics" version="4.0.1" targetFramework="net461" />
   <package id="Microsoft.Owin.Host.HttpListener" version="4.0.1" targetFramework="net461" />
   <package id="Microsoft.Owin.Host.SystemWeb" version="4.0.1" targetFramework="net461" />