diff --git a/build.gradle b/build.gradle
index 8ac5cd3821..710ef43121 100644
--- a/build.gradle
+++ b/build.gradle
@@ -125,8 +125,8 @@ subprojects { subproject ->
 		mysqlVersion = '8.0.11'
 		pahoMqttClientVersion = '1.2.0'
 		postgresVersion = '42.0.0'
-		reactorNettyVersion = '0.8.0.BUILD-SNAPSHOT'
-		reactorVersion = '3.2.0.BUILD-SNAPSHOT'
+		reactorNettyVersion = '0.8.0.M1'
+		reactorVersion = '3.2.0.M2'
 		romeToolsVersion = '1.9.0'
 		servletApiVersion = '4.0.0'
 		smackVersion = '4.2.3'
@@ -135,7 +135,7 @@ subprojects { subproject ->
 		springDataMongoVersion = '2.1.0.RC1'
 		springDataRedisVersion = '2.1.0.RC1'
 		springGemfireVersion = '2.1.0.RC1'
-		springSecurityVersion = '5.1.0.BUILD-SNAPSHOT'
+		springSecurityVersion = '5.1.0.M2'
 		springRetryVersion = '1.2.2.RELEASE'
 		springVersion = project.hasProperty('springVersion') ? project.springVersion : '5.1.0.RC1'
 		springWsVersion = '3.0.2.RELEASE'