diff --git a/gel/pom.xml b/gel/pom.xml
index 6b0eb82..ea6c7f7 100644
--- a/gel/pom.xml
+++ b/gel/pom.xml
@@ -55,7 +55,7 @@
 
 		<owlapi.version>5.5.1</owlapi.version>
 
-		<protege.version>5.6.5</protege.version>
+		<protege.version>5.6.6</protege.version>
 
 		<guava.package>com.google.common.base;version="[18,33)"</guava.package>