diff --git a/src/Caliburn.Micro.Platform/Caliburn.Micro.Platform.csproj b/src/Caliburn.Micro.Platform/Caliburn.Micro.Platform.csproj
index b865630b..09f5424e 100644
--- a/src/Caliburn.Micro.Platform/Caliburn.Micro.Platform.csproj
+++ b/src/Caliburn.Micro.Platform/Caliburn.Micro.Platform.csproj
@@ -23,7 +23,7 @@
   </ItemGroup>
 
   <ItemGroup Condition="'$(TargetFramework)' == 'net45'">
-    <PackageReference Include="Microsoft.Xaml.Behaviors.Wpf" Version=" 1.1.3" />
+    <PackageReference Include="Microsoft.Xaml.Behaviors.Wpf" Version="1.1.3" />
     <Reference Include="PresentationCore" />
     <Reference Include="PresentationFramework" />
     <Reference Include="System.Xaml" />
@@ -32,7 +32,7 @@
   </ItemGroup>
 
   <ItemGroup Condition="'$(TargetFramework)' == 'netcoreapp3.0'">
-    <PackageReference Include="Microsoft.Xaml.Behaviors.Wpf" Version="1.0.1" />
+    <PackageReference Include="Microsoft.Xaml.Behaviors.Wpf" Version="1.1.3" />
     <PackageReference Include="Microsoft.WindowsDesktop.App" Version="3.0.0-preview7-27912-14" />
     <Compile Include="Platforms\net46-netcore\**\*.cs" />
   </ItemGroup>