diff --git a/doc/db/tables_xxl_job.sql b/doc/db/tables_xxl_job.sql
index 2aa94a91..d438238c 100644
--- a/doc/db/tables_xxl_job.sql
+++ b/doc/db/tables_xxl_job.sql
@@ -110,7 +110,7 @@ CREATE TABLE `xxl_job_lock` (
 ) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4;
 
 CREATE TABLE `xxl_job_machine` (
-  `machine_ip` varchar(16) CHARACTER SET utf8 COLLATE utf8_general_ci NOT NULL COMMENT '主机IP',
+  `machine_ip` varchar(22) CHARACTER SET utf8 COLLATE utf8_general_ci NOT NULL COMMENT '主机IP',
   `machine_id` int(4) NOT NULL COMMENT '主机IP对应的机器码',
   `add_time` datetime NOT NULL COMMENT '创建时间',
   `heart_last_time` datetime NOT NULL COMMENT '最后一次心跳时间',
diff --git a/doc/db/tables_xxl_job_oracle.sql b/doc/db/tables_xxl_job_oracle.sql
index a7a82265..8c13a44d 100644
--- a/doc/db/tables_xxl_job_oracle.sql
+++ b/doc/db/tables_xxl_job_oracle.sql
@@ -269,7 +269,7 @@ CREATE UNIQUE INDEX I_USERNAME
 -- ----------------------------
 DROP TABLE XXL_JOB_MACHINE;
 CREATE TABLE XXL_JOB_MACHINE (
-    MACHINE_IP NVARCHAR2(16) NOT NULL ,
+    MACHINE_IP NVARCHAR2(22) NOT NULL ,
     MACHINE_ID NUMBER(4) NOT NULL ,
     ADD_TIME DATE NOT NULL ,
     HEART_LAST_TIME DATE NOT NULL