diff --git a/checkstyle-all/pom.xml b/checkstyle-all/pom.xml
index 40d3bd4a..c73c05e4 100644
--- a/checkstyle-all/pom.xml
+++ b/checkstyle-all/pom.xml
@@ -5,7 +5,7 @@
   <parent>
     <groupId>com.github.checkstyle</groupId>
     <artifactId>checkstyle-sonar-plugin-parent</artifactId>
-    <version>3.1-SNAPSHOT</version>
+    <version>3.1</version>
   </parent>
 
   <name>SonarQube Checkstyle Dependency Shading</name>
diff --git a/checkstyle-sonar-plugin/pom.xml b/checkstyle-sonar-plugin/pom.xml
index 7b039b71..ef388826 100644
--- a/checkstyle-sonar-plugin/pom.xml
+++ b/checkstyle-sonar-plugin/pom.xml
@@ -5,7 +5,7 @@
   <parent>
     <groupId>com.github.checkstyle</groupId>
     <artifactId>checkstyle-sonar-plugin-parent</artifactId>
-    <version>3.1-SNAPSHOT</version>
+    <version>3.1</version>
   </parent>
 
   <artifactId>checkstyle-sonar-plugin</artifactId>
diff --git a/pom.xml b/pom.xml
index ef639a2e..7c221626 100644
--- a/pom.xml
+++ b/pom.xml
@@ -4,7 +4,7 @@
 
   <groupId>com.github.checkstyle</groupId>
   <artifactId>checkstyle-sonar-plugin-parent</artifactId>
-  <version>3.1-SNAPSHOT</version>
+  <version>3.1</version>
   <packaging>pom</packaging>
 
   <name>Checkstyle SonarQube plugin</name>
@@ -73,6 +73,7 @@
     <connection>scm:git:git@github.com:checkstyle/sonar-checkstyle.git</connection>
     <developerConnection>scm:git:git@github.com:checkstyle/sonar-checkstyle.git</developerConnection>
     <url>https://github.com/checkstyle/sonar-checkstyle</url>
+    <tag>3.1</tag>
   </scm>
   <issueManagement>
     <system>GitHub Issues</system>