diff --git a/pom.xml b/pom.xml
index ac32437..173d7b7 100644
--- a/pom.xml
+++ b/pom.xml
@@ -20,7 +20,7 @@
         <java.version>1.8</java.version>
         <mybatisplus.version>3.3.1</mybatisplus.version>
         <mysql.version>8.0.17</mysql.version>
-        <mssql.version>4.2</mssql.version>
+        <mssql.version>4.0</mssql.version>
         <oracle.version>11.2.0.3</oracle.version>
         <druid.version>1.1.13</druid.version>
         <quartz.version>2.3.0</quartz.version>
@@ -119,7 +119,7 @@
         <dependency>
             <groupId>com.microsoft.sqlserver</groupId>
             <artifactId>sqljdbc4</artifactId>
-            <version>4.2</version>
+            <version>4.0</version>
         </dependency>
         <dependency>
             <groupId>org.springframework.boot</groupId>