diff --git a/extcol/pom.xml b/extcol/pom.xml
index dd28086..f2b542e 100644
--- a/extcol/pom.xml
+++ b/extcol/pom.xml
@@ -8,7 +8,7 @@
 		<dependency>
 			<groupId>com.alibaba</groupId>
 			<artifactId>fastjson</artifactId>
-			<version>1.2.78</version>
+			<version>1.2.84</version>
 			<scope>compile</scope>
 			<optional>true</optional>
 		</dependency>