diff --git a/itstack-demo-design-10-00/pom.xml b/itstack-demo-design-10-00/pom.xml
old mode 100755
new mode 100644
index 4ca7448e..60ad3555
--- a/itstack-demo-design-10-00/pom.xml
+++ b/itstack-demo-design-10-00/pom.xml
@@ -54,7 +54,7 @@
         <dependency>
             <groupId>com.alibaba</groupId>
             <artifactId>fastjson</artifactId>
-            <version>1.2.58</version>
+            <version>1.2.83</version>
         </dependency>
         <dependency>
             <groupId>dom4j</groupId>
diff --git a/itstack-demo-design-10-02/pom.xml b/itstack-demo-design-10-02/pom.xml
old mode 100755
new mode 100644
index ee05c2e8..a90f29a0
--- a/itstack-demo-design-10-02/pom.xml
+++ b/itstack-demo-design-10-02/pom.xml
@@ -42,7 +42,7 @@
         <dependency>
             <groupId>com.alibaba</groupId>
             <artifactId>fastjson</artifactId>
-            <version>1.2.62</version>
+            <version>1.2.83</version>
         </dependency>
     </dependencies>
 
diff --git a/itstack-demo-design-12-00/pom.xml b/itstack-demo-design-12-00/pom.xml
old mode 100755
new mode 100644
index 2f052116..3db72d6f
--- a/itstack-demo-design-12-00/pom.xml
+++ b/itstack-demo-design-12-00/pom.xml
@@ -17,7 +17,7 @@
         <sourceEncoding>UTF-8</sourceEncoding>
         <!-- Open Service -->
         <commons-lang3.version>3.8.1</commons-lang3.version>
-        <fastjson.version>1.2.60</fastjson.version>
+        <fastjson.version>1.2.83</fastjson.version>
         <junit.version>4.12</junit.version>
         <logback.version>1.0.9</logback.version>
         <mysql.version>5.1.20</mysql.version>
diff --git a/pom.xml b/pom.xml
old mode 100755
new mode 100644
index 69ad0014..33d5b7eb
--- a/pom.xml
+++ b/pom.xml
@@ -74,7 +74,7 @@
         <dependency>
             <groupId>com.alibaba</groupId>
             <artifactId>fastjson</artifactId>
-            <version>1.2.62</version>
+            <version>1.2.83</version>
         </dependency>
         <dependency>
             <groupId>junit</groupId>