[maven-release-plugin] prepare release maven-help-plugin-3.1.1
diff --git a/pom.xml b/pom.xml
index 9b85abe..50c49a2 100644
--- a/pom.xml
+++ b/pom.xml
@@ -30,7 +30,7 @@
   </parent>
 
   <artifactId>maven-help-plugin</artifactId>
-  <version>3.1.1-SNAPSHOT</version>
+  <version>3.1.1</version>
   <packaging>maven-plugin</packaging>
 
   <name>Apache Maven Help Plugin</name>
@@ -50,7 +50,7 @@
     <connection>scm:git:https://gitbox.apache.org/repos/asf/maven-help-plugin.git</connection>
     <developerConnection>scm:git:https://gitbox.apache.org/repos/asf/maven-help-plugin.git</developerConnection>
     <url>https://github.com/apache/maven-help-plugin/tree/${project.scm.tag}</url>
-    <tag>HEAD</tag>
+    <tag>maven-help-plugin-3.1.1</tag>
   </scm>
   <issueManagement>
     <system>JIRA</system>