diff --git a/build.gradle b/build.gradle
index 4e56f658168..a2301f7ebc4 100644
--- a/build.gradle
+++ b/build.gradle
@@ -32,7 +32,7 @@ configure(allprojects) { project ->
 	version = qualifyVersionIfNecessary(version)
 
 	ext.aspectjVersion       = "1.8.9"
-	ext.caffeineVersion      = "2.3.0"
+	ext.caffeineVersion      = "2.3.1"
 	ext.eclipselinkVersion   = "2.4.2"
 	ext.ehcacheVersion       = "2.10.2"
 	ext.ehcachejcacheVersion = "1.0.1"
@@ -41,7 +41,7 @@ configure(allprojects) { project ->
 	ext.fileuploadVersion    = "1.3.2"
 	ext.freemarkerVersion    = "2.3.23"
 	ext.groovyVersion        = "2.4.7"
-	ext.gsonVersion          = "2.6.2"
+	ext.gsonVersion          = "2.7"
 	ext.guavaVersion         = "19.0"
 	ext.hamcrestVersion      = "1.3"
 	ext.hibernate3Version    = "3.6.10.Final"
@@ -52,7 +52,7 @@ configure(allprojects) { project ->
 	ext.hsqldbVersion        = "2.3.4"
 	ext.httpasyncVersion     = "4.1.1"
 	ext.httpclientVersion    = "4.5.2"
-	ext.jackson2Version      = "2.8.0.rc1"
+	ext.jackson2Version      = "2.8.0.rc2"
 	ext.jasperreportsVersion = "6.2.1"
 	ext.javamailVersion      = "1.5.5"
 	ext.jettyVersion         = "9.3.9.v20160517"
@@ -74,7 +74,7 @@ configure(allprojects) { project ->
 	ext.testngVersion        = "6.9.10"
 	ext.tiles2Version        = "2.2.2"
 	ext.tiles3Version        = "3.0.5"
-	ext.tomcatVersion        = "8.5.2"
+	ext.tomcatVersion        = "8.5.3"
 	ext.tyrusVersion         = "1.3.5"  // constrained by WebLogic 12.1.3 support
 	ext.undertowVersion      = "1.4.0.CR1"
 	ext.xmlunitVersion       = "1.6"