diff --git a/gradle.properties b/gradle.properties
index 577802bc..5d5b4fd5 100644
--- a/gradle.properties
+++ b/gradle.properties
@@ -1,4 +1,4 @@
-relVersion=2.5.1
+relVersion=2.6.0
 saxonVersion=9.9.1-7
 xmlCalabashVersion=1.2.0-99
 resourcesVersion=2.1.1