diff --git a/build.gradle b/build.gradle
index b5ab10d97ce..ab7cabca47e 100644
--- a/build.gradle
+++ b/build.gradle
@@ -62,7 +62,7 @@ configure(allprojects) { project ->
 
 			dependency "io.reactivex:rxjava:1.3.8"
 			dependency "io.reactivex:rxjava-reactive-streams:1.2.1"
-			dependency "io.reactivex.rxjava2:rxjava:2.2.18"
+			dependency "io.reactivex.rxjava2:rxjava:2.2.19"
 			dependency "io.projectreactor.tools:blockhound:1.0.2.RELEASE"
 
 			dependency "com.caucho:hessian:4.0.62"
@@ -133,7 +133,7 @@ configure(allprojects) { project ->
 				entry 'tomcat-embed-core'
 				entry 'tomcat-embed-websocket'
 			}
-			dependencySet(group: 'io.undertow', version: '2.0.29.Final') {
+			dependencySet(group: 'io.undertow', version: '2.0.30.Final') {
 				entry 'undertow-core'
 				entry('undertow-websockets-jsr') {
 					exclude group: "org.jboss.spec.javax.websocket", name: "jboss-websocket-api_1.1_spec"
@@ -196,10 +196,10 @@ configure(allprojects) { project ->
 			}
 			dependency "io.mockk:mockk:1.9.3"
 
-			dependency("net.sourceforge.htmlunit:htmlunit:2.37.0") {
+			dependency("net.sourceforge.htmlunit:htmlunit:2.38.0") {
 				exclude group: "commons-logging", name: "commons-logging"
 			}
-			dependency("org.seleniumhq.selenium:htmlunit-driver:2.37.0") {
+			dependency("org.seleniumhq.selenium:htmlunit-driver:2.38.0") {
 				exclude group: "commons-logging", name: "commons-logging"
 			}
 			dependency("org.seleniumhq.selenium:selenium-java:3.141.59") {