diff --git a/build/ReactiveUI.props b/build/ReactiveUI.props
index d8e86e917e1..f74ab07e317 100644
--- a/build/ReactiveUI.props
+++ b/build/ReactiveUI.props
@@ -1,5 +1,5 @@
 <Project DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
   <ItemGroup>
-    <PackageReference Include="ReactiveUI" Version="11.5.17" />
+    <PackageReference Include="ReactiveUI" Version="12.1.1" />
   </ItemGroup>
 </Project>