diff --git a/build.gradle b/build.gradle
index 7944585c0d..60c1f892d6 100644
--- a/build.gradle
+++ b/build.gradle
@@ -84,7 +84,7 @@ ext {
 	mockitoVersion = '3.3.3'
 	mongoDriverVersion = '4.0.4'
 	mysqlVersion = '8.0.20'
-	pahoMqttClientVersion = '1.2.2'
+	pahoMqttClientVersion = '1.2.4'
 	postgresVersion = '42.2.12'
 	reactorVersion = 'Dysprosium-SR8'
 	resilience4jVersion = '1.4.0'