diff --git a/pom.xml b/pom.xml
index 612e6d8..248a0c6 100644
--- a/pom.xml
+++ b/pom.xml
@@ -160,6 +160,7 @@
 		<thumbnailator.version>0.4.8</thumbnailator.version>
 		<bingoohuang.patchca.version>0.0.1</bingoohuang.patchca.version>
 		<commons-collections.version>3.2.1</commons-collections.version>
+		<jackson.version>2.12.4</jackson.version>
 	</properties>
 	<build>
 		<plugins>