diff --git a/CHANGELOG.md b/CHANGELOG.md
index 431e83a2c..327f669db 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,6 +1,7 @@
 # Changelog
 
-## v1.9.1 (Unreleased)
+## v1.9.1
+- Add basic orchestration and activity execution logs by @cgillum in ([#405](https://github.com/microsoft/durabletask-dotnet/pull/405))
 - Add default version in `TaskOrchestrationContext` by @halspang in ([#408](https://github.com/microsoft/durabletask-dotnet/pull/408))
 
 ## v1.9.0
diff --git a/eng/targets/Release.props b/eng/targets/Release.props
index bef4ac6bd..ead525b40 100644
--- a/eng/targets/Release.props
+++ b/eng/targets/Release.props
@@ -17,7 +17,7 @@
   </PropertyGroup>
 
   <PropertyGroup>
-    <VersionPrefix>1.9.0</VersionPrefix>
+    <VersionPrefix>1.9.1</VersionPrefix>
     <VersionSuffix></VersionSuffix>
   </PropertyGroup>