diff --git a/src/Directory.Build.props b/src/Directory.Build.props
index 970675a..7ce3b84 100644
--- a/src/Directory.Build.props
+++ b/src/Directory.Build.props
@@ -19,7 +19,7 @@
     <AkkaVersion>1.5.49</AkkaVersion>
     <PbmVersion>1.4.4</PbmVersion>
     <AkkaHostingVersion>1.5.45</AkkaHostingVersion>
-    <MicrosoftExtensionsVersion>[8.0.0,)</MicrosoftExtensionsVersion>
+    <MicrosoftExtensionsVersion>9.0.9</MicrosoftExtensionsVersion>
   </PropertyGroup>
   <!-- SourceLink support for all Akka.NET projects -->
   <ItemGroup>