diff --git a/ew.ontology/pom.xml b/ew.ontology/pom.xml
index fedba24..270f2b3 100644
--- a/ew.ontology/pom.xml
+++ b/ew.ontology/pom.xml
@@ -70,7 +70,7 @@
 		<dependency>
 			<groupId>org.apache.jena</groupId>
 			<artifactId>jena-tdb</artifactId>
-			<version>3.16.0</version>
+			<version>4.0.0</version>
 			<exclusions>
         		<exclusion>
           			<groupId>org.slf4j</groupId>