diff --git a/maven-core/pom.xml b/maven-core/pom.xml
index 03a59982e2..a65c4d6aed 100644
--- a/maven-core/pom.xml
+++ b/maven-core/pom.xml
@@ -139,7 +139,9 @@
   <build>
     <plugins>
       <plugin>
+        <groupId>org.apache.maven.plugins</groupId>
         <artifactId>maven-assembly-plugin</artifactId>
+        <version>2.0-alpha-3</version>
         <configuration>
           <descriptor>src/assemble/bin.xml</descriptor>
           <finalName>maven-2.0-SNAPSHOT</finalName>