diff --git a/Services/Blog.Services/packages.config b/Services/Blog.Services/packages.config
index 7f11931..41c0d8c 100644
--- a/Services/Blog.Services/packages.config
+++ b/Services/Blog.Services/packages.config
@@ -6,7 +6,7 @@
   <package id="EntityFramework" version="6.2.0" targetFramework="net46" />
   <package id="ExcelNumberFormat" version="1.0.10" targetFramework="net46" />
   <package id="Microsoft.CSharp" version="4.7.0" targetFramework="net46" />
-  <package id="Microsoft.Owin" version="3.0.1" targetFramework="net46" />
+  <package id="Microsoft.Owin" version="4.1.1" targetFramework="net46" />
   <package id="Microsoft.Owin.Security" version="3.0.1" targetFramework="net46" />
   <package id="Owin" version="1.0" targetFramework="net46" />
   <package id="System.IO.FileSystem.Primitives" version="4.0.1" targetFramework="net46" />