diff --git a/pom.xml b/pom.xml
index 9df82da..e53f8ac 100644
--- a/pom.xml
+++ b/pom.xml
@@ -3,7 +3,7 @@
   <modelVersion>4.0.0</modelVersion>
   <groupId>osm.surveyor</groupId>
   <artifactId>adjustgpx-gui</artifactId>
-  <version>5.5.0</version>
+  <version>5.5.0-SNAPSHOT</version>
   <scm>
     <connection>scm:git:http://surveyor.mydns.jp/gitbucket/git/yuu/adjustgpx-gui.git</connection>
     <url>http://surveyor.mydns.jp/gitbucket/yuu/adjustgpx-gui/wiki</url>