diff --git a/klab.services.reasoner/pom.xml b/klab.services.reasoner/pom.xml
index e754f1d06..124502aba 100644
--- a/klab.services.reasoner/pom.xml
+++ b/klab.services.reasoner/pom.xml
@@ -58,7 +58,7 @@
         <dependency>
             <groupId>net.sourceforge.owlapi</groupId>
             <artifactId>owlapi-distribution</artifactId>
-            <version>3.4.10</version>
+            <version>5.5.1</version>
         </dependency>
         <dependency>
             <groupId>com.hermit-reasoner</groupId>