diff --git a/build.gradle b/build.gradle
index c10514eeb73..4daae99430b 100644
--- a/build.gradle
+++ b/build.gradle
@@ -52,7 +52,7 @@ configure(allprojects) { project ->
 	ext.hsqldbVersion        = "2.3.4"
 	ext.httpasyncVersion     = "4.1.3"
 	ext.httpclientVersion    = "4.5.5"
-	ext.jackson2Version      = "2.8.11.1"
+	ext.jackson2Version      = "2.8.11.2"
 	ext.jasperreportsVersion = "6.2.1"  // our tests fail with JR-internal NPEs against 6.2.2 and higher
 	ext.javamailVersion      = "1.5.6"
 	ext.jettyVersion         = "9.3.14.v20161028"  // as of 9.3.15, Jetty has hard Servlet 3.1 requirement
@@ -69,7 +69,7 @@ configure(allprojects) { project ->
 	ext.poiVersion           = "3.14"
 	ext.reactorVersion       = "2.0.8.RELEASE"
 	ext.romeVersion          = "1.7.4"
-	ext.slf4jVersion         = "1.7.21"
+	ext.slf4jVersion         = "1.7.25"
 	ext.snakeyamlVersion     = "1.17"
 	ext.snifferVersion       = "1.16"
 	ext.testngVersion        = "6.9.10"
@@ -726,7 +726,7 @@ project("spring-web") {
 		}
 		testCompile("com.fasterxml.jackson.datatype:jackson-datatype-joda:2.8.11")
 		testCompile("com.fasterxml.jackson.datatype:jackson-datatype-jdk8:2.8.11")
-		testCompile("com.fasterxml.jackson.module:jackson-module-kotlin:${jackson2Version}")
+		testCompile("com.fasterxml.jackson.module:jackson-module-kotlin:2.8.11.1")
     	testCompile("com.squareup.okhttp3:mockwebserver:${okhttp3Version}")
 		testRuntime("com.sun.mail:javax.mail:${javamailVersion}")
 	}