diff --git a/dolphinscheduler-dao/src/main/java/org/apache/dolphinscheduler/dao/datasource/SpringConnectionFactory.java b/dolphinscheduler-dao/src/main/java/org/apache/dolphinscheduler/dao/datasource/SpringConnectionFactory.java
index ca4a7e20bd..1865c78fd7 100644
--- a/dolphinscheduler-dao/src/main/java/org/apache/dolphinscheduler/dao/datasource/SpringConnectionFactory.java
+++ b/dolphinscheduler-dao/src/main/java/org/apache/dolphinscheduler/dao/datasource/SpringConnectionFactory.java
@@ -91,7 +91,7 @@ public class SpringConnectionFactory {
         druidDataSource.setPoolPreparedStatements(PropertyUtils.getBoolean(Constants.SPRING_DATASOURCE_POOL_PREPARED_STATEMENTS, true));
         druidDataSource.setTestWhileIdle(PropertyUtils.getBoolean(Constants.SPRING_DATASOURCE_TEST_WHILE_IDLE, true));
         druidDataSource.setTestOnBorrow(PropertyUtils.getBoolean(Constants.SPRING_DATASOURCE_TEST_ON_BORROW, true));
-        druidDataSource.setTestOnReturn(PropertyUtils.getBoolean(Constants.SPRING_DATASOURCE_TEST_ON_RETURN, true));
+        druidDataSource.setTestOnReturn(PropertyUtils.getBoolean(Constants.SPRING_DATASOURCE_TEST_ON_RETURN, false));
         druidDataSource.setKeepAlive(PropertyUtils.getBoolean(Constants.SPRING_DATASOURCE_KEEP_ALIVE, true));
 
         druidDataSource.setMinIdle(PropertyUtils.getInt(Constants.SPRING_DATASOURCE_MIN_IDLE, 5));
diff --git a/pom.xml b/pom.xml
index 5d49a974b6..5c3cc6ef72 100644
--- a/pom.xml
+++ b/pom.xml
@@ -70,14 +70,14 @@
         <mybatis-plus.version>3.2.0</mybatis-plus.version>
         <mybatis.spring.version>2.0.1</mybatis.spring.version>
         <cron.utils.version>5.0.5</cron.utils.version>
-        <druid.version>1.1.22</druid.version>
+        <druid.version>1.2.4</druid.version>
         <h2.version>1.4.200</h2.version>
         <commons.codec.version>1.11</commons.codec.version>
         <commons.logging.version>1.1.1</commons.logging.version>
         <httpclient.version>4.4.1</httpclient.version>
         <httpcore.version>4.4.1</httpcore.version>
         <junit.version>4.12</junit.version>
-        <mysql.connector.version>5.1.34</mysql.connector.version>
+        <mysql.connector.version>8.0.16</mysql.connector.version>
         <slf4j.api.version>1.7.5</slf4j.api.version>
         <slf4j.log4j12.version>1.7.5</slf4j.log4j12.version>
         <commons.collections.version>3.2.2</commons.collections.version>
diff --git a/tools/dependencies/known-dependencies.txt b/tools/dependencies/known-dependencies.txt
index 8a77f51fe3..b19e8b9d29 100755
--- a/tools/dependencies/known-dependencies.txt
+++ b/tools/dependencies/known-dependencies.txt
@@ -56,7 +56,7 @@ datanucleus-core-4.1.6.jar
 datanucleus-rdbms-4.1.7.jar
 derby-10.14.2.0.jar
 error_prone_annotations-2.1.3.jar
-druid-1.1.22.jar
+druid-1.2.4.jar
 gson-2.8.6.jar
 guava-24.1-jre.jar
 guava-retrying-2.0.0.jar