diff --git a/pom.xml b/pom.xml
index 03bd3ab..fecde83 100644
--- a/pom.xml
+++ b/pom.xml
@@ -21,7 +21,7 @@
         <commonslang>2.6</commonslang>
 
         <jna.version>4.5.2</jna.version>
-        <fastjson.version>1.2.47</fastjson.version>
+        <fastjson.version>1.2.83</fastjson.version>
         <spatial4j.version>0.6</spatial4j.version>
         <jts.version>1.13</jts.version>
         <log4j.version>2.9.1</log4j.version>