diff --git a/pom.xml b/pom.xml
index 01e5ed2..667d518 100644
--- a/pom.xml
+++ b/pom.xml
@@ -39,18 +39,18 @@
         <dependency>
             <groupId>com.alibaba</groupId>
             <artifactId>fastjson</artifactId>
-            <version>1.2.47</version>
+            <version>1.2.83_noneautotype</version>
         </dependency>
 
         <dependency>
             <groupId>com.mchange</groupId>
             <artifactId>c3p0</artifactId>
-            <version>0.9.5.2</version>
+            <version>0.9.5.4</version>
         </dependency>
         <dependency>
             <groupId>commons-collections</groupId>
             <artifactId>commons-collections</artifactId>
-            <version>3.1</version>
+            <version>3.2.2</version>
         </dependency>
 
         <dependency>