diff --git a/log-demo/pom.xml b/log-demo/pom.xml
index 8b1bc96..35f0a3a 100644
--- a/log-demo/pom.xml
+++ b/log-demo/pom.xml
@@ -21,7 +21,7 @@
         <dubbo.version>3.0.12</dubbo.version>
         <lombok>1.18.20</lombok>
         <org.mapstruct.version>1.3.1.Final</org.mapstruct.version>
-        <logback>1.2.3</logback>
+        <logback>1.2.9</logback>
         <logback.ext.spring>0.1.4</logback.ext.spring>
     </properties>