diff --git a/package.xml b/package.xml
index 6505d3312..ab7696968 100644
--- a/package.xml
+++ b/package.xml
@@ -1,6 +1,6 @@
 <package format="2">
   <name>sot-core</name>
-  <version>4.9.0</version>
+  <version>4.9.1</version>
   <description>
     Hierarchical task solver plug-in for dynamic-graph
   </description>