diff --git a/pom.xml b/pom.xml
index eec7033..9015395 100644
--- a/pom.xml
+++ b/pom.xml
@@ -20,6 +20,7 @@
 		<log4j.version>2.22.1</log4j.version>
 		<krill.version>[0.62.0,)</krill.version>
 		<koral.version>[0.42,)</koral.version>
+		<lucene.version>5.0.0</lucene.version>
 	</properties>
 	<profiles>
 		<profile>
@@ -283,6 +284,14 @@
 		</dependency>
 		
 		<dependency>
+	      <artifactId>lucene-core</artifactId>
+	      <groupId>org.apache.lucene</groupId>
+	      <type>jar</type>
+	      <version>${lucene.version}</version>
+	    </dependency>
+    
+		
+		<dependency>
 			<groupId>de.ids-mannheim.korap.koral</groupId>
 			<artifactId>Koral</artifactId>
 			<version>${koral.version}</version>