Switch a few core plugins to the new api
diff --git a/pom.xml b/pom.xml
index 2b65dbd..e71cc95 100644
--- a/pom.xml
+++ b/pom.xml
@@ -69,7 +69,7 @@
     <dependency>
       <groupId>org.apache.maven</groupId>
       <artifactId>maven-core</artifactId>
-      <version>4.0.0-alpha-1-SNAPSHOT</version>
+      <version>3.0.5</version>
     </dependency>
     <dependency>
       <groupId>org.codehaus.plexus</groupId>