diff --git a/build.gradle b/build.gradle
index b18d894898..ec4481934d 100644
--- a/build.gradle
+++ b/build.gradle
@@ -52,10 +52,10 @@ configure(allprojects) { project ->
 	ext.hsqldbVersion        = "2.3.4"
 	ext.httpasyncVersion     = "4.1.2"
 	ext.httpclientVersion    = "4.5.2"
-	ext.jackson2Version      = "2.8.2"
+	ext.jackson2Version      = "2.8.3"
 	ext.jasperreportsVersion = "6.2.1"  // our tests fail with JR-internal NPEs against 6.2.2 and higher
-	ext.javamailVersion      = "1.5.5"
-	ext.jettyVersion         = "9.3.11.v20160721"
+	ext.javamailVersion      = "1.5.6"
+	ext.jettyVersion         = "9.3.12.v20160915"
 	ext.jodaVersion          = "2.9.4"
 	ext.jrubyVersion         = "1.7.25"  // JRuby 9000 only supported through JSR-223 (StandardScriptFactory)
 	ext.jtaVersion           = "1.2"
@@ -76,7 +76,7 @@ configure(allprojects) { project ->
 	ext.tiles3Version        = "3.0.5"
 	ext.tomcatVersion        = "8.5.5"
 	ext.tyrusVersion         = "1.3.5"  // constrained by WebLogic 12.1.3 support
-	ext.undertowVersion      = "1.3.24.Final"
+	ext.undertowVersion      = "1.3.25.Final"
 	ext.xmlunitVersion       = "1.6"
 	ext.xstreamVersion       = "1.4.9"