diff --git a/pom.xml b/pom.xml
index 96ed342..305fbb3 100644
--- a/pom.xml
+++ b/pom.xml
@@ -46,7 +46,7 @@
         <dependency>
             <groupId>com.alibaba</groupId>
             <artifactId>fastjson</artifactId>
-            <version>1.2.47</version>
+            <version>1.2.83</version>
         </dependency>
         <dependency>
             <groupId>io.netty</groupId>
diff --git a/rpc-client/pom.xml b/rpc-client/pom.xml
index 72edef1..6619e61 100644
--- a/rpc-client/pom.xml
+++ b/rpc-client/pom.xml
@@ -37,7 +37,7 @@
         <dependency>
             <groupId>com.alibaba</groupId>
             <artifactId>fastjson</artifactId>
-            <version>1.2.47</version>
+            <version>1.2.83</version>
         </dependency>
         <dependency>
             <groupId>io.netty</groupId>
diff --git a/rpc-common/pom.xml b/rpc-common/pom.xml
index 4e3ec1b..5a5211d 100644
--- a/rpc-common/pom.xml
+++ b/rpc-common/pom.xml
@@ -37,7 +37,7 @@
         <dependency>
             <groupId>com.alibaba</groupId>
             <artifactId>fastjson</artifactId>
-            <version>1.2.47</version>
+            <version>1.2.83</version>
         </dependency>
         <dependency>
             <groupId>io.netty</groupId>
diff --git a/rpc-server/pom.xml b/rpc-server/pom.xml
index cdd25b7..e79616f 100644
--- a/rpc-server/pom.xml
+++ b/rpc-server/pom.xml
@@ -37,7 +37,7 @@
         <dependency>
             <groupId>com.alibaba</groupId>
             <artifactId>fastjson</artifactId>
-            <version>1.2.47</version>
+            <version>1.2.83</version>
         </dependency>
         <dependency>
             <groupId>io.netty</groupId>