diff --git a/phoenix-queryserver-assembly/pom.xml b/phoenix-queryserver-assembly/pom.xml
index 25286de..c4a5bbc 100644
--- a/phoenix-queryserver-assembly/pom.xml
+++ b/phoenix-queryserver-assembly/pom.xml
@@ -52,6 +52,7 @@
         <plugins>
             <plugin>
                 <artifactId>maven-assembly-plugin</artifactId>
+                <version>${maven-assembly-plugin-version}</version>
                 <executions>
                     <execution>
                         <id>cluster</id>
diff --git a/phoenix-queryserver-client/pom.xml b/phoenix-queryserver-client/pom.xml
index fd0e9bb..aa2d39f 100644
--- a/phoenix-queryserver-client/pom.xml
+++ b/phoenix-queryserver-client/pom.xml
@@ -59,6 +59,7 @@
     <plugins>
       <plugin>
         <artifactId>maven-assembly-plugin</artifactId>
+        <version>${maven-assembly-plugin-version}</version>
         <configuration>
           <skipAssembly>true</skipAssembly>
         </configuration>
diff --git a/pom.xml b/pom.xml
index bcd8126..543a7a2 100644
--- a/pom.xml
+++ b/pom.xml
@@ -93,6 +93,7 @@
         <junit.version>4.12</junit.version>
 
         <!-- Plugin versions -->
+        <maven-assembly-plugin-version>3.1.1</maven-assembly-plugin-version>
         <maven-eclipse-plugin.version>2.9</maven-eclipse-plugin.version>
         <maven-build-helper-plugin.version>1.9.1</maven-build-helper-plugin.version>
         <spotbugs-maven-plugin.version>4.1.3</spotbugs-maven-plugin.version>