diff --git a/my12306_web/pom.xml b/my12306_web/pom.xml
index 7077df6..6f6d448 100644
--- a/my12306_web/pom.xml
+++ b/my12306_web/pom.xml
@@ -139,7 +139,7 @@
                     <dependency>
                         <groupId>org.postgresql</groupId>
                         <artifactId>postgresql</artifactId>
-                        <version>42.3.3</version>
+                        <version>42.3.8</version>
                     </dependency>
                     <dependency>
                         <groupId>org.mybatis.generator</groupId>