diff --git a/build/Base.props b/build/Base.props
index ca35d91..6aec944 100644
--- a/build/Base.props
+++ b/build/Base.props
@@ -2,7 +2,7 @@
 <Project DefaultTargets="Build"
          xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
   <PropertyGroup>
-    <Version>9.0.401.11073</Version>
+    <Version>9.0.264.11073</Version>
     <PackageProjectUrl>https://github.com/AvaloniaCommunity/Prism.Avalonia</PackageProjectUrl>
     <Copyright>Copyright (c) 2024 Xeno Innovations, Inc.</Copyright>
     <PackageLicenseExpression>MIT</PackageLicenseExpression>
diff --git a/build/PrismDependency.props b/build/PrismDependency.props
index 3d86648..18af5dd 100644
--- a/build/PrismDependency.props
+++ b/build/PrismDependency.props
@@ -3,7 +3,7 @@
          xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
 
   <ItemGroup>
-    <PackageReference Include="Prism.Core" Version="9.0.401-pre" />
+    <PackageReference Include="Prism.Core" Version="9.0.264-pre" />
     <!--<PackageReference Include="Prism.Container.DryIoc" Version="9.0.80-pre" />-->
   </ItemGroup>