diff --git a/build.gradle b/build.gradle
index c9bec2e770..801d68a44d 100644
--- a/build.gradle
+++ b/build.gradle
@@ -11,7 +11,7 @@ buildscript {
 // 3rd party plugin repositories can be configured in settings.gradle
 plugins {
 	id "io.spring.dependency-management" version "1.0.5.RELEASE" apply false
-	id "org.jetbrains.kotlin.jvm" version "1.2.60" apply false
+	id "org.jetbrains.kotlin.jvm" version "1.2.61" apply false
 	id "org.jetbrains.dokka" version "0.9.17"
 	id "org.asciidoctor.convert" version "1.5.7"
 }
@@ -35,16 +35,16 @@ ext {
 	jackson2Version      = "2.9.6"
 	jettyVersion         = "9.4.12.RC2"
 	junit5Version        = "5.3.0-RC1"
-	kotlinVersion        = "1.2.60"
+	kotlinVersion        = "1.2.61"
 	log4jVersion         = "2.11.1"
 	nettyVersion         = "4.1.28.Final"
 	reactorVersion       = "Californium-M2"
 	rxjavaVersion        = "1.3.8"
 	rxjavaAdapterVersion = "1.2.1"
-	rxjava2Version       = "2.2.0"
+	rxjava2Version       = "2.2.1"
 	slf4jVersion         = "1.7.25"	  // spring-jcl + consistent 3rd party deps
 	tiles3Version        = "3.0.8"
-	tomcatVersion        = "9.0.10"
+	tomcatVersion        = "9.0.11"
 	undertowVersion      = "2.0.13.Final"
 
 	gradleScriptDir = "${rootProject.projectDir}/gradle"