diff --git a/CARET_analyze_cpp_impl/package.xml b/CARET_analyze_cpp_impl/package.xml
index 716a62b..27bdab9 100644
--- a/CARET_analyze_cpp_impl/package.xml
+++ b/CARET_analyze_cpp_impl/package.xml
@@ -2,7 +2,7 @@
 <?xml-model href="http://download.ros.org/schema/package_format3.xsd" schematypens="http://www.w3.org/2001/XMLSchema"?>
 <package format="3">
   <name>caret_analyze_cpp_impl</name>
-  <version>0.6.00</version>
+  <version>0.6.0</version>
   <description>c++ implementation of caret_analyze</description>
   <maintainer email="yamasaki@isp.co.jp">ymski</maintainer>
   <maintainer email="uetsuki@isp.co.jp">isp-uetsuki</maintainer>