diff --git a/build.gradle b/build.gradle
index b6e1b8a03f..48c22671a7 100644
--- a/build.gradle
+++ b/build.gradle
@@ -4,7 +4,7 @@ buildscript {
 	}
 	dependencies {
 		classpath("org.springframework.build.gradle:propdeps-plugin:0.0.3")
-		classpath("org.springframework.build.gradle:docbook-reference-plugin:0.2.4")
+		classpath("org.springframework.build.gradle:docbook-reference-plugin:0.2.6")
 	}
 }