diff --git a/opentsdbreader/pom.xml b/opentsdbreader/pom.xml
index f226372..a088f65 100644
--- a/opentsdbreader/pom.xml
+++ b/opentsdbreader/pom.xml
@@ -25,7 +25,7 @@
         <commons-io.version>2.4</commons-io.version>
 
         <!-- json -->
-        <fastjson.version>1.2.28</fastjson.version>
+        <fastjson.version>1.2.83</fastjson.version>
 
         <!-- opentsdb -->
         <opentsdb.version>2.3.2</opentsdb.version>
diff --git a/pom.xml b/pom.xml
index 1d298eb..ee783af 100644
--- a/pom.xml
+++ b/pom.xml
@@ -22,7 +22,7 @@
         <commons-lang3-version>3.3.2</commons-lang3-version>
         <commons-configuration-version>1.10</commons-configuration-version>
         <commons-cli-version>1.2</commons-cli-version>
-        <fastjson-version>1.2.49</fastjson-version>
+        <fastjson-version>1.2.83</fastjson-version>
         <guava-version>16.0.1</guava-version>
         <diamond.version>3.7.2.1-SNAPSHOT</diamond.version>
 
diff --git a/tdenginereader/pom.xml b/tdenginereader/pom.xml
index 319152f..f74fbb2 100644
--- a/tdenginereader/pom.xml
+++ b/tdenginereader/pom.xml
@@ -32,7 +32,7 @@
         <dependency>
             <groupId>com.alibaba</groupId>
             <artifactId>fastjson</artifactId>
-            <version>1.2.78</version>
+            <version>1.2.83</version>
         </dependency>
 
         <dependency>
diff --git a/tdenginewriter/pom.xml b/tdenginewriter/pom.xml
index 6a7ff25..04e282b 100644
--- a/tdenginewriter/pom.xml
+++ b/tdenginewriter/pom.xml
@@ -23,7 +23,7 @@
         <dependency>
             <groupId>com.alibaba</groupId>
             <artifactId>fastjson</artifactId>
-            <version>1.2.78</version>
+            <version>1.2.83</version>
         </dependency>
 
         <dependency>
diff --git a/tsdbreader/pom.xml b/tsdbreader/pom.xml
index 0f99023..c2e2539 100644
--- a/tsdbreader/pom.xml
+++ b/tsdbreader/pom.xml
@@ -25,7 +25,7 @@
         <commons-io.version>2.4</commons-io.version>
 
         <!-- json -->
-        <fastjson.version>1.2.28</fastjson.version>
+        <fastjson.version>1.2.83</fastjson.version>
 
         <!-- test -->
         <junit4.version>4.13.1</junit4.version>
diff --git a/tsdbwriter/pom.xml b/tsdbwriter/pom.xml
index 6f2bac5..023390d 100644
--- a/tsdbwriter/pom.xml
+++ b/tsdbwriter/pom.xml
@@ -25,7 +25,7 @@
         <commons-io.version>2.4</commons-io.version>
 
         <!-- json -->
-        <fastjson.version>1.2.28</fastjson.version>
+        <fastjson.version>1.2.83</fastjson.version>
 
         <!-- test -->
         <junit4.version>4.13.1</junit4.version>