diff --git a/android-integration/pom.xml b/android-integration/pom.xml
index f2fc03dd9..610fb124e 100644
--- a/android-integration/pom.xml
+++ b/android-integration/pom.xml
@@ -31,7 +31,7 @@
   <parent>
     <groupId>com.google.zxing</groupId>
     <artifactId>zxing-parent</artifactId>
-    <version>3.1.1-SNAPSHOT</version>
+    <version>3.1.0</version>
   </parent>
 
   <build>
diff --git a/android/pom.xml b/android/pom.xml
index 9b97a90b7..faaad05b6 100644
--- a/android/pom.xml
+++ b/android/pom.xml
@@ -39,7 +39,7 @@
   <parent>
     <groupId>com.google.zxing</groupId>
     <artifactId>zxing-parent</artifactId>
-    <version>3.1.1-SNAPSHOT</version>
+    <version>3.1.0</version>
   </parent>
 
   <build>
diff --git a/glass/pom.xml b/glass/pom.xml
index 4b5435647..5bf64eee6 100644
--- a/glass/pom.xml
+++ b/glass/pom.xml
@@ -39,7 +39,7 @@
   <parent>
     <groupId>com.google.zxing</groupId>
     <artifactId>zxing-parent</artifactId>
-    <version>3.1.1-SNAPSHOT</version>
+    <version>3.1.0</version>
   </parent>
 
   <build>
diff --git a/pom.xml b/pom.xml
index ac7bf6dd5..c455494a6 100644
--- a/pom.xml
+++ b/pom.xml
@@ -357,7 +357,7 @@
         <plugin>
           <groupId>org.codehaus.mojo</groupId>
           <artifactId>build-helper-maven-plugin</artifactId>
-          <version>1.8</version>
+          <version>1.9</version>
         </plugin>
         <plugin>
           <groupId>org.codehaus.mojo</groupId>