diff --git a/build.gradle b/build.gradle
index 7fb50c6ccec..069248259bd 100644
--- a/build.gradle
+++ b/build.gradle
@@ -32,23 +32,23 @@ configure(allprojects) { project ->
 	version = qualifyVersionIfNecessary(version)
 
 	ext.aspectjVersion       = "1.9.0.BETA-3"
-	ext.caffeineVersion      = "2.1.0"
+	ext.caffeineVersion      = "2.2.0"
 	ext.eclipselinkVersion   = "2.4.2"
 	ext.ehcacheVersion       = "2.10.1"
 	ext.ehcachejcacheVersion = "1.0.1"
-	ext.ehcache3Version      = "3.0.0.m4"
+	ext.ehcache3Version      = "3.0.0.m5"
 	ext.ejbApiVersion        = "3.0"
 	ext.fileuploadVersion    = "1.3.1"
 	ext.freemarkerVersion    = "2.3.23"
-	ext.groovyVersion        = "2.4.5"
-	ext.gsonVersion          = "2.5"
+	ext.groovyVersion        = "2.4.6"
+	ext.gsonVersion          = "2.6.1"
 	ext.guavaVersion         = "19.0"
 	ext.hamcrestVersion      = "1.3"
 	ext.hibernate3Version    = "3.6.10.Final"
 	ext.hibernate4Version    = "4.3.11.Final"
 	ext.hibernate5Version    = "5.1.0.Final"
 	ext.hibval4Version       = "4.3.2.Final"
-	ext.hibval5Version       = "5.2.3.Final"
+	ext.hibval5Version       = "5.2.4.Final"
 	ext.hsqldbVersion        = "2.3.3"
 	ext.htmlunitVersion      = "2.19"
 	ext.httpasyncVersion     = "4.1.1"
@@ -71,8 +71,8 @@ configure(allprojects) { project ->
 	ext.reactorVersion       = "2.0.7.RELEASE"
 	ext.romeVersion          = "1.5.1"
 	ext.seleniumVersion      = "2.48.2"
-	ext.slf4jVersion         = "1.7.15"
-	ext.snakeyamlVersion     = "1.16"
+	ext.slf4jVersion         = "1.7.16"
+	ext.snakeyamlVersion     = "1.17"
 	ext.snifferVersion       = "1.14"
 	ext.testngVersion        = "6.9.10"
 	ext.tiles2Version        = "2.2.2"