diff --git a/hadoop-mapreduce/pom.xml b/hadoop-mapreduce/pom.xml
index 5fa9b2e..d7af153 100644
--- a/hadoop-mapreduce/pom.xml
+++ b/hadoop-mapreduce/pom.xml
@@ -79,7 +79,7 @@
         <dependency>
             <groupId>com.fasterxml.jackson.core</groupId>
             <artifactId>jackson-databind</artifactId>
-            <version>2.9.5</version>
+            <version>2.12.6.1</version>
         </dependency>