diff --git a/jetty-documentation/pom.xml b/jetty-documentation/pom.xml
index bf59d024a30..01fa73f7b47 100644
--- a/jetty-documentation/pom.xml
+++ b/jetty-documentation/pom.xml
@@ -156,7 +156,6 @@
       </plugin>
       <plugin>
         <artifactId>maven-assembly-plugin</artifactId>
-        <version>2.6</version>
         <configuration>
           <descriptors>
             <descriptor>src/main/assembly/html.xml</descriptor>
diff --git a/tests/test-webapps/test-jndi-webapp/pom.xml b/tests/test-webapps/test-jndi-webapp/pom.xml
index 86c5d642db1..901c09ab9fe 100644
--- a/tests/test-webapps/test-jndi-webapp/pom.xml
+++ b/tests/test-webapps/test-jndi-webapp/pom.xml
@@ -81,7 +81,6 @@
       <plugin>
         <groupId>org.apache.maven.plugins</groupId>
         <artifactId>maven-assembly-plugin</artifactId>
-        <version>2.2-beta-3</version>
         <executions>
           <execution>
             <phase>package</phase>
diff --git a/tests/test-webapps/test-servlet-spec/test-spec-webapp/pom.xml b/tests/test-webapps/test-servlet-spec/test-spec-webapp/pom.xml
index 6046f9177a3..55304c291f6 100644
--- a/tests/test-webapps/test-servlet-spec/test-spec-webapp/pom.xml
+++ b/tests/test-webapps/test-servlet-spec/test-spec-webapp/pom.xml
@@ -144,7 +144,6 @@
        <!-- plugin>
           <groupId>org.apache.maven.plugins</groupId>
           <artifactId>maven-assembly-plugin</artifactId>
-          <version>2.2-beta-3</version>
           <executions>
             <execution>
               <phase>package</phase>