diff --git a/src/main/resources/application-dev.yml b/src/main/resources/application-dev.yml
index c6e5f89070723ff5076f637eea381dfab54bcd15..9b120838d13da45a6eff2340685cf270c8842f5b 100644
--- a/src/main/resources/application-dev.yml
+++ b/src/main/resources/application-dev.yml
@@ -7,7 +7,7 @@ spring:
     druid:
      #主库数据源
      master:
-        url: jdbc:mysql://localhost:8889/course?useUnicode=true&characterEncoding=UTF-8&useSSL=false&autoReconnect=true&failOverReadOnly=false&serverTimezone=GMT
+        url: jdbc:mysql://localhost:3306/course?useUnicode=true&characterEncoding=UTF-8&useSSL=false&autoReconnect=true&failOverReadOnly=false&serverTimezone=GMT
         username: root
         password: rootroot
      #备数据源 #关闭