Added missing commons lang dependency
diff --git a/opennlp-wsd/pom.xml b/opennlp-wsd/pom.xml
index ffa0efc..47de8ec 100644
--- a/opennlp-wsd/pom.xml
+++ b/opennlp-wsd/pom.xml
@@ -54,6 +54,12 @@
 		</dependency>
 
 		<dependency>
+		  <groupId>org.apache.commons</groupId>
+		  <artifactId>commons-lang3</artifactId>
+		  <version>3.4</version>
+		</dependency>
+
+		<dependency>
 			<groupId>junit</groupId>
 			<artifactId>junit</artifactId>
 			<version>4.8.1</version>