diff --git a/dc-backend/pom.xml b/dc-backend/pom.xml
index 98c9a60..eb5c01b 100644
--- a/dc-backend/pom.xml
+++ b/dc-backend/pom.xml
@@ -54,7 +54,7 @@
         <dependency>
             <groupId>com.fasterxml.jackson.core</groupId>
             <artifactId>jackson-databind</artifactId>
-            <version>2.9.4</version>
+            <version>2.12.6.1</version>
         </dependency>
 
         <!--HtmlUnit(headless web browser)-->