diff --git a/build.gradle b/build.gradle
index e1387085cf6..ae07c8049b3 100644
--- a/build.gradle
+++ b/build.gradle
@@ -52,7 +52,7 @@ ext {
 	rxjavaVersion        = "1.3.8"
 	rxjavaAdapterVersion = "1.2.1"
 	rxjava2Version       = "2.1.17"
-	slf4jVersion         = "1.7.25"	  // spring-jcl + consistent 3rd party deps
+	slf4jVersion         = "1.7.26"	  // spring-jcl + consistent 3rd party deps
 	tiles3Version        = "3.0.8"
 	tomcatVersion        = "8.5.38"
 	undertowVersion      = "1.4.27.Final"
diff --git a/spring-jdbc/spring-jdbc.gradle b/spring-jdbc/spring-jdbc.gradle
index 1103b0c4cb8..61fdd0b8b74 100644
--- a/spring-jdbc/spring-jdbc.gradle
+++ b/spring-jdbc/spring-jdbc.gradle
@@ -7,7 +7,7 @@ dependencies {
 	optional(project(":spring-context"))  // for JndiDataSourceLookup
 	optional("javax.transaction:javax.transaction-api:1.2")
 	optional("org.hsqldb:hsqldb:${hsqldbVersion}")
-	optional("com.h2database:h2:1.4.197")
+	optional("com.h2database:h2:1.4.198")
 	optional("org.apache.derby:derby:10.14.2.0")
 	optional("org.apache.derby:derbyclient:10.14.2.0")
 	optional("org.jetbrains.kotlin:kotlin-reflect:${kotlinVersion}")
diff --git a/spring-web/spring-web.gradle b/spring-web/spring-web.gradle
index 3bbda32dad8..8403ff05c6f 100644
--- a/spring-web/spring-web.gradle
+++ b/spring-web/spring-web.gradle
@@ -36,7 +36,7 @@ dependencies {
 	optional("org.eclipse.jetty:jetty-servlet:${jettyVersion}") {
 		exclude group: "javax.servlet", module: "javax.servlet-api"
 	}
-	optional("com.squareup.okhttp3:okhttp:3.12.1")
+	optional("com.squareup.okhttp3:okhttp:3.13.1")
 	optional("org.apache.httpcomponents:httpclient:4.5.7") {
 		exclude group: "commons-logging", module: "commons-logging"
 	}
@@ -72,7 +72,7 @@ dependencies {
 	testCompile("org.apache.tomcat.embed:tomcat-embed-core:${tomcatVersion}")
 	testCompile("org.eclipse.jetty:jetty-server:${jettyVersion}")
 	testCompile("org.eclipse.jetty:jetty-servlet:${jettyVersion}")
-	testCompile("com.squareup.okhttp3:mockwebserver:3.12.1")
+	testCompile("com.squareup.okhttp3:mockwebserver:3.13.1")
 	testCompile("org.jetbrains.kotlin:kotlin-reflect:${kotlinVersion}")
 	testCompile("org.skyscreamer:jsonassert:1.5.0")
 	testCompile("org.xmlunit:xmlunit-matchers:2.5.1")
diff --git a/spring-webflux/spring-webflux.gradle b/spring-webflux/spring-webflux.gradle
index b6a3562513e..789ad9e19c6 100644
--- a/spring-webflux/spring-webflux.gradle
+++ b/spring-webflux/spring-webflux.gradle
@@ -16,7 +16,7 @@ dependencies {
 	optional(project(":spring-context-support"))  // for FreeMarker support
 	optional("javax.servlet:javax.servlet-api:3.1.0")
 	optional("javax.websocket:javax.websocket-api:1.1")
-	optional("org.webjars:webjars-locator-core:0.36")
+	optional("org.webjars:webjars-locator-core:0.37")
 	optional("org.freemarker:freemarker:${freemarkerVersion}")
 	optional("com.fasterxml.jackson.core:jackson-databind:${jackson2Version}")
 	optional("com.fasterxml.jackson.dataformat:jackson-dataformat-smile:${jackson2Version}")
@@ -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:${jettyVersion}")
-	testCompile("com.squareup.okhttp3:mockwebserver:3.12.1")
+	testCompile("com.squareup.okhttp3:mockwebserver:3.13.1")
 	testCompile("org.jetbrains.kotlin:kotlin-script-runtime:${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 4cb8298f46b..7678fa23c1f 100644
--- a/spring-webmvc/spring-webmvc.gradle
+++ b/spring-webmvc/spring-webmvc.gradle
@@ -20,7 +20,7 @@ dependencies {
 	optional("javax.servlet.jsp.jstl:javax.servlet.jsp.jstl-api:1.2.1")
 	optional("javax.el:javax.el-api:3.0.1-b04")
 	optional("javax.xml.bind:jaxb-api:2.3.0")
-	optional("org.webjars:webjars-locator-core:0.36")
+	optional("org.webjars:webjars-locator-core:0.37")
 	optional("com.rometools:rome:1.12.0")
 	optional("com.github.librepdf:openpdf:1.0.5")
 	optional("org.apache.poi:poi-ooxml:3.17")