diff --git a/brainiot-service-impl/pom.xml b/brainiot-service-impl/pom.xml
index be45246..881858a 100644
--- a/brainiot-service-impl/pom.xml
+++ b/brainiot-service-impl/pom.xml
@@ -173,7 +173,7 @@
         <dependency>
             <groupId>ch.qos.logback</groupId>
             <artifactId>logback-core</artifactId>
-            <version>1.2.3</version>
+            <version>1.2.9</version>
         </dependency>
 		<dependency>
 			<groupId>com.fasterxml.jackson.core</groupId>