diff --git a/build.gradle b/build.gradle
index 89dc47f699..2a183b4b1e 100644
--- a/build.gradle
+++ b/build.gradle
@@ -36,7 +36,7 @@ configure(allprojects) { project ->
 	ext.fileuploadVersion    = "1.3.1"
 	ext.freemarkerVersion    = "2.3.23"
 	ext.groovyVersion        = "2.4.5"
-	ext.gsonVersion          = "2.4"
+	ext.gsonVersion          = "2.5"
 	ext.guavaVersion         = "18.0"
 	ext.hamcrestVersion      = "1.3"
 	ext.hibernate3Version    = "3.6.10.Final"
@@ -53,13 +53,13 @@ configure(allprojects) { project ->
 	ext.javamailVersion      = "1.5.4"
 	ext.jettyVersion         = "9.3.6.v20151106"
 	ext.jodaVersion          = "2.9.1"
-	ext.jrubyVersion         = "1.7.22"  // JRuby 9000 only supported through JSR-223 (StandardScriptFactory)
+	ext.jrubyVersion         = "1.7.23"  // JRuby 9000 only supported through JSR-223 (StandardScriptFactory)
 	ext.jsonassertVersion    = "1.2.3"
-	ext.jsonpathVersion      = "2.0.0"
+	ext.jsonpathVersion      = "2.1.0"
 	ext.jtaVersion           = "1.2"
 	ext.junitVersion         = "4.12"
 	ext.nettyVersion         = "4.0.33.Final"
-	ext.okhttpVersion        = "2.5.0"
+	ext.okhttpVersion        = "2.6.0"
 	ext.openjpaVersion       = "2.4.0"
 	ext.poiVersion           = "3.13"
 	ext.protobufVersion      = "2.6.1"
@@ -74,7 +74,7 @@ configure(allprojects) { project ->
 	ext.tiles3Version        = "3.0.5"
 	ext.tomcatVersion        = "8.0.29"
 	ext.tyrusVersion         = "1.3.5"  // constrained by WebLogic 12.1.3 support
-	ext.undertowVersion      = "1.3.6.Final"
+	ext.undertowVersion      = "1.3.7.Final"
 	ext.woodstoxVersion      = "5.0.1"
 	ext.xmlunitVersion       = "1.6"
 	ext.xstreamVersion       = "1.4.8"