diff --git a/Agiil.Auth.Impl/Agiil.Auth.Impl.csproj b/Agiil.Auth.Impl/Agiil.Auth.Impl.csproj
index cbd1d2ce..53e8c000 100644
--- a/Agiil.Auth.Impl/Agiil.Auth.Impl.csproj
+++ b/Agiil.Auth.Impl/Agiil.Auth.Impl.csproj
@@ -21,7 +21,7 @@
     <PackageReference Include="Iesi.Collections" Version="4.0.0.4000" />
     <PackageReference Include="Microsoft.AspNet.Identity.Core" Version="2.2.1" />
     <PackageReference Include="Microsoft.AspNet.Identity.Owin" Version="2.2.1" />
-    <PackageReference Include="Microsoft.Owin" Version="3.0.1" />
+    <PackageReference Include="Microsoft.Owin" Version="4.0.0" />
     <PackageReference Include="Microsoft.Owin.Security" Version="3.0.1" />
     <PackageReference Include="Microsoft.Owin.Security.Cookies" Version="3.0.1" />
     <PackageReference Include="Microsoft.Owin.Security.OAuth" Version="3.0.1" />
diff --git a/Agiil.Bootstrap/Agiil.Bootstrap.csproj b/Agiil.Bootstrap/Agiil.Bootstrap.csproj
index d580fb8f..87341c84 100644
--- a/Agiil.Bootstrap/Agiil.Bootstrap.csproj
+++ b/Agiil.Bootstrap/Agiil.Bootstrap.csproj
@@ -16,7 +16,7 @@
     <PackageReference Include="NHibernate" Version="4.0.0.4000" />
     <PackageReference Include="Autofac" Version="4.9.4" />
     <PackageReference Include="Owin" Version="1.0" />
-    <PackageReference Include="Microsoft.Owin" Version="3.0.1" />
+    <PackageReference Include="Microsoft.Owin" Version="4.0.0" />
     <PackageReference Include="Microsoft.Owin.Security" Version="3.0.1" />
     <PackageReference Include="Microsoft.Owin.Security.Cookies" Version="3.0.1" />
     <PackageReference Include="Microsoft.Owin.Host.SystemWeb" Version="3.0.1" />
diff --git a/Agiil.Web.OAuth/Agiil.Web.OAuth.csproj b/Agiil.Web.OAuth/Agiil.Web.OAuth.csproj
index b955bc30..5d0c2a5a 100644
--- a/Agiil.Web.OAuth/Agiil.Web.OAuth.csproj
+++ b/Agiil.Web.OAuth/Agiil.Web.OAuth.csproj
@@ -15,7 +15,7 @@
     <PackageReference Include="CSF.Configuration" Version="1.1.2" />
     <PackageReference Include="CSF.Security" Version="2.0.2" />
     <PackageReference Include="Owin" Version="1.0" />
-    <PackageReference Include="Microsoft.Owin" Version="3.0.1" />
+    <PackageReference Include="Microsoft.Owin" Version="4.0.0" />
     <PackageReference Include="Microsoft.Owin.Security" Version="3.0.1" />
     <PackageReference Include="System.IdentityModel.Tokens.Jwt" Version="4.0.0" />
     <PackageReference Include="Microsoft.Owin.Security.OAuth" Version="3.0.1" />
diff --git a/Tests/Agiil.Tests.Auth/Agiil.Tests.Auth.csproj b/Tests/Agiil.Tests.Auth/Agiil.Tests.Auth.csproj
index a1104a55..f72ef1c2 100644
--- a/Tests/Agiil.Tests.Auth/Agiil.Tests.Auth.csproj
+++ b/Tests/Agiil.Tests.Auth/Agiil.Tests.Auth.csproj
@@ -20,7 +20,7 @@
       <PackageReference Include="CSF.ORM.Entities" Version="2.0.3" />
       <PackageReference Include="CSF.Security" Version="2.0.2" />
       <PackageReference Include="Fare" Version="2.1.1" />
-      <PackageReference Include="Microsoft.Owin" Version="3.0.1" />
+      <PackageReference Include="Microsoft.Owin" Version="4.0.0" />
       <PackageReference Include="Microsoft.Owin.Security" Version="3.0.1" />
       <PackageReference Include="Moq" Version="4.14.5" />
       <PackageReference Include="Newtonsoft.Json" Version="11.0.2" />