diff --git a/java-post-gcm/pom.xml b/java-post-gcm/pom.xml
index 8279de94..f03142fd 100644
--- a/java-post-gcm/pom.xml
+++ b/java-post-gcm/pom.xml
@@ -23,7 +23,7 @@
 		<dependency>
 			<groupId>com.fasterxml.jackson.core</groupId>
 			<artifactId>jackson-databind</artifactId>
-			<version>2.9.10.4</version>
+			<version>2.2.2</version>
 		</dependency>
 		<dependency>
 			<groupId>com.fasterxml.jackson.core</groupId>