diff --git a/collector/pom.xml b/collector/pom.xml
index 7f977bfe..9c6d6db8 100644
--- a/collector/pom.xml
+++ b/collector/pom.xml
@@ -4,7 +4,7 @@
   <parent>
     <groupId>io.prometheus.jmx</groupId>
     <artifactId>parent</artifactId>
-    <version>0.3.1-SNAPSHOT</version>
+    <version>0.3.1</version>
   </parent>
 
   <groupId>io.prometheus.jmx</groupId>
diff --git a/jmx_prometheus_httpserver/pom.xml b/jmx_prometheus_httpserver/pom.xml
index a770b1ac..e22789b5 100644
--- a/jmx_prometheus_httpserver/pom.xml
+++ b/jmx_prometheus_httpserver/pom.xml
@@ -4,7 +4,7 @@
   <parent>
     <groupId>io.prometheus.jmx</groupId>
     <artifactId>parent</artifactId>
-    <version>0.3.1-SNAPSHOT</version>
+    <version>0.3.1</version>
   </parent>
 
   <artifactId>jmx_prometheus_httpserver</artifactId>
@@ -17,7 +17,7 @@
     <dependency>
       <groupId>io.prometheus.jmx</groupId>
       <artifactId>collector</artifactId>
-      <version>0.3.1-SNAPSHOT</version>
+      <version>0.3.1</version>
     </dependency>
     <dependency>
       <groupId>io.prometheus</groupId>
diff --git a/jmx_prometheus_javaagent/pom.xml b/jmx_prometheus_javaagent/pom.xml
index b246d229..215fb186 100644
--- a/jmx_prometheus_javaagent/pom.xml
+++ b/jmx_prometheus_javaagent/pom.xml
@@ -4,7 +4,7 @@
   <parent>
     <groupId>io.prometheus.jmx</groupId>
     <artifactId>parent</artifactId>
-    <version>0.3.1-SNAPSHOT</version>
+    <version>0.3.1</version>
   </parent>
 
   <groupId>io.prometheus.jmx</groupId>
@@ -18,7 +18,7 @@
     <dependency>
       <groupId>io.prometheus.jmx</groupId>
       <artifactId>collector</artifactId>
-      <version>0.3.1-SNAPSHOT</version>
+      <version>0.3.1</version>
     </dependency>
     <dependency>
       <groupId>io.prometheus</groupId>
diff --git a/pom.xml b/pom.xml
index c11e6489..88ffc6dd 100644
--- a/pom.xml
+++ b/pom.xml
@@ -4,7 +4,7 @@
 
   <groupId>io.prometheus.jmx</groupId>
   <artifactId>parent</artifactId>
-  <version>0.3.1-SNAPSHOT</version>
+  <version>0.3.1</version>
   <description>
     See https://github.com/prometheus/jmx_exporter/blob/master/README.md
   </description>
@@ -45,7 +45,7 @@
       <connection>scm:git:git@github.com:prometheus/jmx_exporter.git</connection>
       <developerConnection>scm:git:git@github.com:prometheus/jmx_exporter.git</developerConnection>
       <url>git@github.com:prometheus/jmx_exporter.git</url>
-      <tag>HEAD</tag>
+      <tag>parent-0.3.1</tag>
   </scm>
 
   <build>