diff --git a/build.gradle b/build.gradle
index e8f27265846..84cb860674c 100644
--- a/build.gradle
+++ b/build.gradle
@@ -33,19 +33,19 @@ ext {
 	groovyVersion        = "2.5.9"
 	hsqldbVersion        = "2.4.1"
 	jackson2Version      = "2.9.9"
-	jettyVersion         = "9.4.26.v20200117"
+	jettyVersion         = "9.4.27.v20200227"
 	junit5Version        = "5.3.2"
 	kotlinVersion        = "1.2.71"
 	log4jVersion         = "2.11.2"
-	nettyVersion         = "4.1.45.Final"
+	nettyVersion         = "4.1.47.Final"
 	reactorVersion       = "Californium-SR16"
 	rxjavaVersion        = "1.3.8"
 	rxjavaAdapterVersion = "1.2.1"
-	rxjava2Version       = "2.2.18"
+	rxjava2Version       = "2.2.19"
 	slf4jVersion         = "1.7.30"	  // spring-jcl + consistent 3rd party deps
 	tiles3Version        = "3.0.8"
 	tomcatVersion        = "9.0.31"
-	undertowVersion      = "2.0.29.Final"
+	undertowVersion      = "2.0.30.Final"
 
 	gradleScriptDir = "${rootProject.projectDir}/gradle"
 	withoutJclOverSlf4j = {
diff --git a/spring-web/spring-web.gradle b/spring-web/spring-web.gradle
index bf3d6ed5690..bf5a9d1a565 100644
--- a/spring-web/spring-web.gradle
+++ b/spring-web/spring-web.gradle
@@ -38,7 +38,7 @@ dependencies {
 		exclude group: "javax.servlet", module: "javax.servlet-api"
 	}
 	optional("org.eclipse.jetty:jetty-reactive-httpclient:1.0.3")
-	optional("com.squareup.okhttp3:okhttp:3.14.6")
+	optional("com.squareup.okhttp3:okhttp:3.14.7")
 	optional("org.apache.httpcomponents:httpclient:4.5.10") {
 		exclude group: "commons-logging", module: "commons-logging"
 	}
@@ -75,7 +75,7 @@ dependencies {
 	testCompile("org.apache.tomcat.embed:tomcat-embed-core:${tomcatVersion}")
 	testCompile("org.eclipse.jetty:jetty-server")
 	testCompile("org.eclipse.jetty:jetty-servlet")
-	testCompile("com.squareup.okhttp3:mockwebserver:3.14.6")
+	testCompile("com.squareup.okhttp3:mockwebserver:3.14.7")
 	testCompile("org.jetbrains.kotlin:kotlin-reflect:${kotlinVersion}")
 	testCompile("org.skyscreamer:jsonassert:1.5.0")
 	testCompile("org.xmlunit:xmlunit-matchers:2.6.2")
diff --git a/spring-webflux/spring-webflux.gradle b/spring-webflux/spring-webflux.gradle
index ba3e6b07e70..a18e9031a5b 100644
--- a/spring-webflux/spring-webflux.gradle
+++ b/spring-webflux/spring-webflux.gradle
@@ -51,7 +51,7 @@ dependencies {
 	testCompile("org.eclipse.jetty:jetty-server")
 	testCompile("org.eclipse.jetty:jetty-servlet")
 	testCompile("org.eclipse.jetty:jetty-reactive-httpclient:1.0.3")
-	testCompile("com.squareup.okhttp3:mockwebserver:3.14.6")
+	testCompile("com.squareup.okhttp3:mockwebserver:3.14.7")
 	testCompile("org.jetbrains.kotlin:kotlin-script-runtime:${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 690baf66551..4cf776ed699 100644
--- a/spring-webmvc/spring-webmvc.gradle
+++ b/spring-webmvc/spring-webmvc.gradle
@@ -24,7 +24,7 @@ dependencies {
 	optional("org.webjars:webjars-locator-core:0.37")
 	optional("com.rometools:rome:1.12.2")
 	optional("com.github.librepdf:openpdf:1.2.21")
-	optional("org.apache.poi:poi-ooxml:4.1.1")
+	optional("org.apache.poi:poi-ooxml:4.1.2")
 	optional("org.freemarker:freemarker:${freemarkerVersion}")
 	optional("com.fasterxml.jackson.core:jackson-databind:${jackson2Version}")
 	optional("com.fasterxml.jackson.dataformat:jackson-dataformat-xml:${jackson2Version}")