checkstyle plugin updated

git-svn-id: https://svn.apache.org/repos/asf/commons/proper/digester/trunk@1187925 13f79535-47bb-0310-9956-ffa450edef68
diff --git a/pom.xml b/pom.xml
index 9aaddde..813235b 100644
--- a/pom.xml
+++ b/pom.xml
@@ -288,7 +288,7 @@
       <plugin>
         <groupId>org.apache.maven.plugins</groupId>
         <artifactId>maven-checkstyle-plugin</artifactId>
-        <version>2.6</version>
+        <version>2.7</version>
         <configuration>
           <configLocation>config/maven_checks.xml</configLocation>
           <headerLocation>config/maven-header.txt</headerLocation>