diff --git a/build.gradle b/build.gradle
index bbd0a9c1b6..3bf10f57bc 100644
--- a/build.gradle
+++ b/build.gradle
@@ -127,7 +127,7 @@ subprojects { subproject ->
 		micrometerVersion = '1.1.14'
 		mockitoVersion = '2.25.1'
 		mysqlVersion = '8.0.16'
-		pahoMqttClientVersion = '1.2.2'
+		pahoMqttClientVersion = '1.2.4'
 		postgresVersion = '42.2.5'
 		reactorNettyVersion = '0.8.19.RELEASE'
 		reactorVersion = '3.2.18.RELEASE'