diff --git a/archiva-base/archiva-repository-layer/pom.xml b/archiva-base/archiva-repository-layer/pom.xml
index a62a7baa7..4efe5bd4e 100644
--- a/archiva-base/archiva-repository-layer/pom.xml
+++ b/archiva-base/archiva-repository-layer/pom.xml
@@ -55,6 +55,14 @@
       <groupId>org.codehaus.plexus</groupId>
       <artifactId>plexus-utils</artifactId>
     </dependency>
+    <dependency>
+      <groupId>org.codehaus.plexus</groupId>
+      <artifactId>plexus-component-api</artifactId>
+    </dependency>
+    <dependency>
+      <groupId>org.codehaus.plexus</groupId>
+      <artifactId>plexus-container-default</artifactId>
+    </dependency>
     <dependency>
       <groupId>org.codehaus.plexus.cache</groupId>
       <artifactId>plexus-cache-api</artifactId>
diff --git a/pom.xml b/pom.xml
index 04bb42526..c105c8262 100644
--- a/pom.xml
+++ b/pom.xml
@@ -171,12 +171,12 @@
          <dependency>
             <groupId>org.codehaus.plexus</groupId>
             <artifactId>plexus-container-default</artifactId>
-            <version>1.0-alpha-18</version>
+            <version>1.0-alpha-20</version>
          </dependency>
          <dependency>
             <groupId>org.codehaus.plexus</groupId>
             <artifactId>plexus-component-api</artifactId>
-            <version>1.0-alpha-18</version>
+            <version>1.0-alpha-20</version>
          </dependency>
          <dependency>
             <groupId>org.codehaus.plexus</groupId>