diff --git a/CARET_trace/package.xml b/CARET_trace/package.xml
index 3640f40e..09c5864c 100644
--- a/CARET_trace/package.xml
+++ b/CARET_trace/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_trace</name>
-  <version>0.5.5</version>
+  <version>0.5.6</version>
   <description>Library to add tracepoints for CARET</description>
   <maintainer email="yamasaki@isp.co.jp">ymski</maintainer>
   <maintainer email="uetsuki@isp.co.jp">isp-uetsuki</maintainer>
diff --git a/caret_msgs/package.xml b/caret_msgs/package.xml
index d518cf95..87837162 100644
--- a/caret_msgs/package.xml
+++ b/caret_msgs/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_msgs</name>
-  <version>0.5.5</version>
+  <version>0.5.6</version>
   <description>Message definitions for CARET</description>
   <maintainer email="yamasaki@isp.co.jp">ymski</maintainer>
   <maintainer email="uetsuki@isp.co.jp">isp-uetsuki</maintainer>