diff --git a/build.sbt b/build.sbt
index 04cc1f9..d251240 100644
--- a/build.sbt
+++ b/build.sbt
@@ -1,6 +1,6 @@
 import scala.scalanative.build._
 
-lazy val owlapiVersion = "4.5.29"
+lazy val owlapiVersion = "5.5.1"
 
 lazy val commonSettings = Seq(
   organization := "org.geneontology",