diff --git a/gradle.properties b/gradle.properties
index fb84c59..2123ad4 100644
--- a/gradle.properties
+++ b/gradle.properties
@@ -22,7 +22,7 @@ springDataMongoVersion=1.9.1.RELEASE
 springShellVersion=1.1.0.RELEASE
 springDataGemFireVersion=1.8.1.RELEASE
 springDataGeodeVersion=1.0.0.APACHE-GEODE-INCUBATING-M2
-assertjVersion=2.3.0
+assertjVersion=2.5.0
 spockVersion=1.0-groovy-2.4
 jstlVersion=1.2.1
 groovyVersion=2.4.4