diff --git a/broker/pom.xml b/broker/pom.xml
index d7d67434..6641371b 100644
--- a/broker/pom.xml
+++ b/broker/pom.xml
@@ -48,7 +48,7 @@
         <dependency>
             <groupId>mysql</groupId>
             <artifactId>mysql-connector-java</artifactId>
-            <version>8.0.11</version>
+            <version>8.0.19</version>
         </dependency>
 
         <dependency>
diff --git a/broker/src/main/resources/c3p0-config.xml b/broker/src/main/resources/c3p0-config.xml
index 7cda063a..6d952373 100755
--- a/broker/src/main/resources/c3p0-config.xml
+++ b/broker/src/main/resources/c3p0-config.xml
@@ -18,7 +18,7 @@
         <!--MySQL数据库驱动程序-->
         <property name="driverClass">com.mysql.cj.jdbc.Driver</property>
         <!--MySQL数据库地址-->
-        <property name="jdbcUrl">jdbc:mysql://localhost:3306/wfchat?useSSL=false&amp;serverTimezone=GMT%2B8&amp;allowPublicKeyRetrieval=true&amp;useUnicode=true&amp;characterEncoding=utf8</property>
+        <property name="jdbcUrl">jdbc:mysql://localhost:3306/wfchat?verifyServerCertificate=false&amp;useSSL=false&amp;serverTimezone=GMT%2B8&amp;allowPublicKeyRetrieval=true&amp;useUnicode=true&amp;characterEncoding=UTF-8</property>
         <!--MySQL数据库用户名-->
         <property name="user">root</property>
         <!--MySQL数据库密码-->
diff --git a/distribution/src/main/resources/c3p0-config.xml b/distribution/src/main/resources/c3p0-config.xml
index 4fe7073d..34556ab5 100755
--- a/distribution/src/main/resources/c3p0-config.xml
+++ b/distribution/src/main/resources/c3p0-config.xml
@@ -15,7 +15,7 @@
         <!--MySQL数据库驱动程序-->
         <property name="driverClass">com.mysql.cj.jdbc.Driver</property>
         <!--MySQL数据库地址-->
-        <property name="jdbcUrl">jdbc:mysql://localhost:3306/wfchat?useSSL=false&amp;serverTimezone=GMT%2B8&amp;allowPublicKeyRetrieval=true&amp;useUnicode=true&amp;characterEncoding=utf8</property>
+        <property name="jdbcUrl">jdbc:mysql://localhost:3306/wfchat?useSSL=false&amp;serverTimezone=GMT%2B8&amp;allowPublicKeyRetrieval=true&amp;useUnicode=true&amp;characterEncoding=UTF-8</property>
         <!--MySQL数据库用户名-->
         <property name="user">root</property>
         <!--MySQL数据库密码-->