diff --git a/trs/client/pom.xml b/trs/client/pom.xml
index c8d8b4ac..21b2e6f3 100644
--- a/trs/client/pom.xml
+++ b/trs/client/pom.xml
@@ -24,7 +24,7 @@
       <dependency>
         <groupId>org.eclipse.rdf4j</groupId>
         <artifactId>rdf4j-repository-sparql</artifactId>
-        <version>2.5.3</version>
+        <version>5.1.0</version>
       </dependency>
     </dependencies>
   </dependencyManagement>
diff --git a/trs/client/trs-client/src/main/java/org/eclipse/lyo/trs/client/util/SparqlUtil.java b/trs/client/trs-client/src/main/java/org/eclipse/lyo/trs/client/util/SparqlUtil.java
index 6018d99b..31c70836 100644
--- a/trs/client/trs-client/src/main/java/org/eclipse/lyo/trs/client/util/SparqlUtil.java
+++ b/trs/client/trs-client/src/main/java/org/eclipse/lyo/trs/client/util/SparqlUtil.java
@@ -398,7 +398,7 @@ static public void processQuery(String query, String serviceUrl) {
     static public void processQuery_sesame(String query, String serviceUrl, String user, String pwd) {
         SPARQLRepository repo = new SPARQLRepository(serviceUrl);
         repo.setUsernameAndPassword(user, pwd);
-        repo.initialize();
+        repo.init();
         RepositoryConnection rc = repo.getConnection();
         processQuery_sesame(query, rc);
     }