diff --git a/build.gradle b/build.gradle
index 4f4eeda909..1975ee0e7c 100644
--- a/build.gradle
+++ b/build.gradle
@@ -29,8 +29,8 @@ configure(allprojects) { project ->
 
 	ext.aspectjVersion       = "1.8.5"
 	ext.eclipseLinkVersion   = "2.4.2"
-	ext.ehcacheVersion       = "2.9.0"
-	ext.ehcacheJCacheVersion = "1.0.0"
+	ext.ehcacheVersion       = "2.9.1"
+	ext.ehcacheJCacheVersion = "1.0.1"
 	ext.groovyVersion        = "2.4.1"
 	ext.gsonVersion          = "2.3.1"
 	ext.hibernate3Version    = "3.6.10.Final"
@@ -53,11 +53,11 @@ configure(allprojects) { project ->
 	ext.snifferVersion       = "1.11"
 	ext.tiles2Version        = "2.2.2"
 	ext.tiles3Version        = "3.0.5"
-	ext.tomcatVersion        = "8.0.18"
+	ext.tomcatVersion        = "8.0.20"
 	ext.tyrusVersion         = "1.3.5"  // constrained by WebLogic 12.1.3 support
 	ext.undertowVersion      = "1.1.2.Final"
 	ext.woodstoxVersion      = "4.4.1"
-	ext.xstreamVersion       = "1.4.7"
+	ext.xstreamVersion       = "1.4.8"
 
 	ext.gradleScriptDir = "${rootProject.projectDir}/gradle"