diff --git a/log/pom.xml b/log/pom.xml
index 22a933f2..6de7a8a6 100644
--- a/log/pom.xml
+++ b/log/pom.xml
@@ -22,7 +22,7 @@
         <dependency>
             <groupId>jline</groupId>
             <artifactId>jline</artifactId>
-            <version>2.12.1</version>
+            <version>2.14.3</version>
             <scope>compile</scope>
         </dependency>
         <dependency>
diff --git a/pom.xml b/pom.xml
index 7f9564c6..517e4de5 100644
--- a/pom.xml
+++ b/pom.xml
@@ -66,7 +66,7 @@
 
     <properties>
         <build.number>unknown</build.number>
-        <netty.version>4.1.6.Final</netty.version>
+        <netty.version>4.1.7.Final</netty.version>
         <maven.compiler.source>1.7</maven.compiler.source>
         <maven.compiler.target>1.7</maven.compiler.target>
         <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
diff --git a/proxy/pom.xml b/proxy/pom.xml
index 2bb124e0..850ab860 100644
--- a/proxy/pom.xml
+++ b/proxy/pom.xml
@@ -77,13 +77,13 @@
         <dependency>
             <groupId>mysql</groupId>
             <artifactId>mysql-connector-java</artifactId>
-            <version>5.1.34</version>
+            <version>5.1.40</version>
             <scope>runtime</scope>
         </dependency>
         <dependency>
             <groupId>org.javassist</groupId>
             <artifactId>javassist</artifactId>
-            <version>3.19.0-GA</version>
+            <version>3.20.0-GA</version>
             <scope>runtime</scope>
         </dependency>
     </dependencies>