update to use new parent POM version
diff --git a/pom.xml b/pom.xml
index 74eb820..1cb4a31 100644
--- a/pom.xml
+++ b/pom.xml
@@ -23,7 +23,7 @@
   <parent>
     <groupId>org.apache.taglibs</groupId>
     <artifactId>taglibs-parent</artifactId>
-    <version>3-SNAPSHOT</version>
+    <version>4-SNAPSHOT</version>
     <relativePath>../taglibs-parent/pom.xml</relativePath>
   </parent>