diff --git a/codes/redis/redis-in-action/pom.xml b/codes/redis/redis-in-action/pom.xml
index 3c2c2edf..d7470ebd 100644
--- a/codes/redis/redis-in-action/pom.xml
+++ b/codes/redis/redis-in-action/pom.xml
@@ -50,7 +50,7 @@
 		<dependency>
 			<groupId>com.google.code.gson</groupId>
 			<artifactId>gson</artifactId>
-			<version>2.8.5</version>
+			<version>2.8.9</version>
 		</dependency>
 		<dependency>
 			<groupId>org.apache.commons</groupId>