diff --git a/pom.xml b/pom.xml
index 6cf4185..88dff49 100644
--- a/pom.xml
+++ b/pom.xml
@@ -24,7 +24,7 @@
 		<dependency>
 			<groupId>com.linecorp.bot</groupId>
 			<artifactId>line-bot-api-client</artifactId>
-			<version>2.7.0</version>
+			<version>4.0.0</version>
 		</dependency>
 
 		<!-- Okhttp -->