diff --git a/src/Prometheus.Client.Owin/Prometheus.Client.Owin.csproj b/src/Prometheus.Client.Owin/Prometheus.Client.Owin.csproj
index e06950b..3bc353f 100644
--- a/src/Prometheus.Client.Owin/Prometheus.Client.Owin.csproj
+++ b/src/Prometheus.Client.Owin/Prometheus.Client.Owin.csproj
@@ -3,7 +3,7 @@
     <Description>An Owin handler for the Prometheus.Client</Description>
     <Copyright>2017 © Sergey Kuznetsov</Copyright>
     <AssemblyTitle>Prometheus.Client.Owin</AssemblyTitle>
-    <VersionPrefix>1.3.2</VersionPrefix>
+    <VersionPrefix>1.4.0</VersionPrefix>
     <Authors>Sergey Kuznetsov</Authors>
     <TargetFrameworks>net45;netstandard1.3;netstandard2.0</TargetFrameworks>
     <AssemblyName>Prometheus.Client.Owin</AssemblyName>
@@ -26,7 +26,7 @@
     <DefineConstants>$(DefineConstants);NETSTANDARD</DefineConstants>
   </PropertyGroup>
   <ItemGroup>
-    <PackageReference Include="Prometheus.Client" Version="[1.3.0,1.4.0)" />
+    <PackageReference Include="Prometheus.Client" Version="1.4.0" />
   </ItemGroup>
   <ItemGroup Condition=" '$(TargetFramework)' == 'netstandard1.3'">
     <PackageReference Include="Microsoft.AspNetCore.Http.Abstractions">