diff --git a/spring-web/spring-web.gradle b/spring-web/spring-web.gradle
index 0b8c2aa83fc..221691e7098 100644
--- a/spring-web/spring-web.gradle
+++ b/spring-web/spring-web.gradle
@@ -36,7 +36,7 @@ dependencies {
 	optional("org.eclipse.jetty:jetty-servlet:${jettyVersion}") {
 		exclude group: "javax.servlet", module: "javax.servlet-api"
 	}
-	optional("com.squareup.okhttp3:okhttp:3.12.2")
+	optional("com.squareup.okhttp3:okhttp:3.12.3")
 	optional("org.apache.httpcomponents:httpclient:4.5.8") {
 		exclude group: "commons-logging", module: "commons-logging"
 	}
@@ -73,7 +73,7 @@ dependencies {
 	testCompile("org.apache.tomcat.embed:tomcat-embed-core:${tomcatVersion}")
 	testCompile("org.eclipse.jetty:jetty-server:${jettyVersion}")
 	testCompile("org.eclipse.jetty:jetty-servlet:${jettyVersion}")
-	testCompile("com.squareup.okhttp3:mockwebserver:3.12.2")
+	testCompile("com.squareup.okhttp3:mockwebserver:3.12.3")
 	testCompile("org.jetbrains.kotlin:kotlin-reflect:${kotlinVersion}")
 	testCompile("org.skyscreamer:jsonassert:1.5.0")
 	testCompile("org.xmlunit:xmlunit-matchers:2.5.1")
diff --git a/spring-webflux/spring-webflux.gradle b/spring-webflux/spring-webflux.gradle
index 60bfcca8650..164cfc4cfd8 100644
--- a/spring-webflux/spring-webflux.gradle
+++ b/spring-webflux/spring-webflux.gradle
@@ -48,7 +48,7 @@ dependencies {
 	testCompile("org.apache.tomcat:tomcat-util:${tomcatVersion}")
 	testCompile("org.eclipse.jetty:jetty-server:${jettyVersion}")
 	testCompile("org.eclipse.jetty:jetty-servlet:${jettyVersion}")
-	testCompile("com.squareup.okhttp3:mockwebserver:3.12.2")
+	testCompile("com.squareup.okhttp3:mockwebserver:3.12.3")
 	testCompile("org.jetbrains.kotlin:kotlin-script-runtime:${kotlinVersion}")
 	testRuntime("org.jetbrains.kotlin:kotlin-script-util:${kotlinVersion}")
 	testRuntime("org.jetbrains.kotlin:kotlin-compiler:${kotlinVersion}")