diff --git a/build.gradle b/build.gradle
index 1ebdc33..e96d59f 100644
--- a/build.gradle
+++ b/build.gradle
@@ -33,7 +33,7 @@ dependencies {
     testImplementation 'junit:junit:4.12'
     testCompile 'junit:junit:4.12'
     implementation 'junit:junit:4.12'
-    implementation 'org.eclipse.paho:org.eclipse.paho.client.mqttv3:1.2.0'
+    implementation 'org.eclipse.paho:org.eclipse.paho.client.mqttv3:1.2.5'
     implementation 'com.google.cloud:google-cloud-datastore:1.56.0'
     implementation 'com.auth0:java-jwt:3.7.0'
     // https://mvnrepository.com/artifact/com.googlecode.objectify/objectify