diff --git a/NancyApiTokenAuth/NancyApiTokenAuth.csproj b/NancyApiTokenAuth/NancyApiTokenAuth.csproj
index 93d9a2d..b5d71a2 100644
--- a/NancyApiTokenAuth/NancyApiTokenAuth.csproj
+++ b/NancyApiTokenAuth/NancyApiTokenAuth.csproj
@@ -50,8 +50,9 @@
     <Reference Include="log4net">
       <HintPath>..\packages\log4net.2.0.3\lib\net40-full\log4net.dll</HintPath>
     </Reference>
-    <Reference Include="Microsoft.Owin">
-      <HintPath>..\packages\Microsoft.Owin.3.0.1\lib\net45\Microsoft.Owin.dll</HintPath>
+    <Reference Include="Microsoft.Owin, Version=4.2.2.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35">
+      <HintPath>..\packages\Microsoft.Owin.4.2.2\lib\net45\Microsoft.Owin.dll</HintPath>
+      <Private>True</Private>
     </Reference>
     <Reference Include="Microsoft.Owin.Host.HttpListener">
       <HintPath>..\packages\Microsoft.Owin.Host.HttpListener.3.0.1\lib\net45\Microsoft.Owin.Host.HttpListener.dll</HintPath>
diff --git a/NancyApiTokenAuth/packages.config b/NancyApiTokenAuth/packages.config
index 18f51cf..0fa34cb 100644
--- a/NancyApiTokenAuth/packages.config
+++ b/NancyApiTokenAuth/packages.config
@@ -1,7 +1,7 @@
 <?xml version="1.0" encoding="utf-8"?>
 <packages>
   <package id="log4net" version="2.0.3" targetFramework="net45" />
-  <package id="Microsoft.Owin" version="3.0.1" targetFramework="net45" />
+  <package id="Microsoft.Owin" version="4.2.2" targetFramework="net45" />
   <package id="Microsoft.Owin.Host.HttpListener" version="3.0.1" targetFramework="net45" />
   <package id="Microsoft.Owin.Host.SystemWeb" version="3.0.1" targetFramework="net45" />
   <package id="Microsoft.Owin.Hosting" version="3.0.1" targetFramework="net45" />