diff --git a/plexus-classworlds.spec b/plexus-classworlds.spec
index fa384b8..f8fc502 100644
--- a/plexus-classworlds.spec
+++ b/plexus-classworlds.spec
@@ -19,7 +19,6 @@ BuildRequires:  mvn(org.apache.ant:ant)
 BuildRequires:  mvn(commons-logging:commons-logging)
 BuildRequires:  mvn(xml-apis:xml-apis)
 
-Obsoletes:      classworlds < 1.1-13
 
 %description
 Classworlds is a framework for container developers