diff --git a/build.gradle b/build.gradle
index db5a4e06a65..26314d811f8 100644
--- a/build.gradle
+++ b/build.gradle
@@ -14,7 +14,7 @@ buildscript {
 plugins {
 	id "com.gradle.build-scan" version "1.8"
 	id "io.spring.dependency-management" version "1.0.3.RELEASE" apply false
-	id "org.jetbrains.kotlin.jvm" version "1.2.51" apply false
+	id "org.jetbrains.kotlin.jvm" version "1.2.71" apply false
 	id "org.jetbrains.dokka" version "0.9.17"
 	id "org.asciidoctor.convert" version "1.5.6"
 }
@@ -37,7 +37,7 @@ ext {
 	}
 
 	aspectjVersion       = "1.8.13"
-	freemarkerVersion    = "2.3.27-incubating"
+	freemarkerVersion    = "2.3.28"
 	groovyVersion        = "2.4.15"
 	hsqldbVersion        = "2.4.1"
 	jackson2Version      = "2.9.7"
@@ -45,7 +45,7 @@ ext {
 	junitJupiterVersion  = "5.0.3"
 	junitPlatformVersion = "1.0.3"
 	junitVintageVersion  = "4.12.3"
-	kotlinVersion        = "1.2.51"
+	kotlinVersion        = "1.2.71"
 	log4jVersion         = "2.11.1"
 	nettyVersion         = "4.1.31.Final"
 	reactorVersion       = "Bismuth-SR14"
diff --git a/spring-test/spring-test.gradle b/spring-test/spring-test.gradle
index a992cbe30ff..cee938440f8 100644
--- a/spring-test/spring-test.gradle
+++ b/spring-test/spring-test.gradle
@@ -71,7 +71,7 @@ dependencies {
 	testCompile("org.apache.tiles:tiles-core:${tiles3Version}", withoutJclOverSlf4J)
 	testCompile("org.apache.tiles:tiles-servlet:${tiles3Version}", withoutJclOverSlf4J)
 	testCompile("org.hsqldb:hsqldb:${hsqldbVersion}")
-	testCompile("org.apache.httpcomponents:httpclient:4.5.5") {
+	testCompile("org.apache.httpcomponents:httpclient:4.5.6") {
 		exclude group: "commons-logging", module: "commons-logging"
 	}
 	testCompile("io.projectreactor.ipc:reactor-netty")
diff --git a/spring-web/spring-web.gradle b/spring-web/spring-web.gradle
index 6301bac9128..44495b4a535 100644
--- a/spring-web/spring-web.gradle
+++ b/spring-web/spring-web.gradle
@@ -36,11 +36,11 @@ dependencies {
 	optional("org.eclipse.jetty:jetty-servlet:${jettyVersion}") {
 		exclude group: "javax.servlet", module: "javax.servlet-api"
 	}
-	optional("com.squareup.okhttp3:okhttp:3.10.0")
-	optional("org.apache.httpcomponents:httpclient:4.5.5") {
+	optional("com.squareup.okhttp3:okhttp:3.12.0")
+	optional("org.apache.httpcomponents:httpclient:4.5.6") {
 		exclude group: "commons-logging", module: "commons-logging"
 	}
-	optional("org.apache.httpcomponents:httpasyncclient:4.1.3") {
+	optional("org.apache.httpcomponents:httpasyncclient:4.1.4") {
 		exclude group: "commons-logging", module: "commons-logging"
 	}
 	optional("commons-fileupload:commons-fileupload:1.3.3")
@@ -72,7 +72,7 @@ dependencies {
 	testCompile("org.apache.tomcat.embed:tomcat-embed-core:${tomcatVersion}")
 	testCompile("org.eclipse.jetty:jetty-server:${jettyVersion}")
 	testCompile("org.eclipse.jetty:jetty-servlet:${jettyVersion}")
-	testCompile("com.squareup.okhttp3:mockwebserver:3.10.0")
+	testCompile("com.squareup.okhttp3:mockwebserver:3.12.0")
 	testCompile("org.jetbrains.kotlin:kotlin-reflect:${kotlinVersion}")
 	testCompile("org.skyscreamer:jsonassert:1.5.0")
 	testCompile("org.xmlunit:xmlunit-matchers:2.5.1")
diff --git a/spring-webflux/spring-webflux.gradle b/spring-webflux/spring-webflux.gradle
index 4428d748e16..f07b69f2e64 100644
--- a/spring-webflux/spring-webflux.gradle
+++ b/spring-webflux/spring-webflux.gradle
@@ -33,7 +33,7 @@ dependencies {
 	optional("io.undertow:undertow-websockets-jsr:${undertowVersion}") {
 		exclude group: "org.jboss.spec.javax.websocket", module: "jboss-websocket-api_1.1_spec"
 	}
-	optional("org.apache.httpcomponents:httpclient:4.5.5") {
+	optional("org.apache.httpcomponents:httpclient:4.5.6") {
 		exclude group: "commons-logging", module: "commons-logging"
 	}
 	optional("org.jetbrains.kotlin:kotlin-reflect:${kotlinVersion}")
@@ -48,7 +48,7 @@ dependencies {
 	testCompile("org.apache.tomcat:tomcat-util:${tomcatVersion}")
 	testCompile("org.eclipse.jetty:jetty-server:${jettyVersion}")
 	testCompile("org.eclipse.jetty:jetty-servlet:${jettyVersion}")
-	testCompile("com.squareup.okhttp3:mockwebserver:3.10.0")
+	testCompile("com.squareup.okhttp3:mockwebserver:3.12.0")
 	testCompile("org.jetbrains.kotlin:kotlin-script-runtime:${kotlinVersion}")
 	testRuntime("org.jetbrains.kotlin:kotlin-script-util:${kotlinVersion}")
 	testRuntime("org.jetbrains.kotlin:kotlin-compiler:${kotlinVersion}")
diff --git a/spring-webmvc/spring-webmvc.gradle b/spring-webmvc/spring-webmvc.gradle
index 62a08c4c0e3..ae706e7305f 100644
--- a/spring-webmvc/spring-webmvc.gradle
+++ b/spring-webmvc/spring-webmvc.gradle
@@ -49,7 +49,7 @@ dependencies {
 	testCompile("org.eclipse.jetty:jetty-server:${jettyVersion}") {
 		exclude group: "javax.servlet", module: "javax.servlet"
 	}
-	testCompile("org.apache.httpcomponents:httpclient:4.5.5") {
+	testCompile("org.apache.httpcomponents:httpclient:4.5.6") {
 		exclude group: "commons-logging", module: "commons-logging"
 	}
 	testCompile("commons-fileupload:commons-fileupload:1.3.3")