diff --git a/Code/Spark-based Algorithms/Space-Time K function/pom.xml b/Code/Spark-based Algorithms/Space-Time K function/pom.xml
index caf68c8..b7912d2 100644
--- a/Code/Spark-based Algorithms/Space-Time K function/pom.xml	
+++ b/Code/Spark-based Algorithms/Space-Time K function/pom.xml	
@@ -15,7 +15,7 @@
         <hadoop.version>2.7.7</hadoop.version>
         <jts.version>1.16.0</jts.version>
         <geotools.version>19.2</geotools.version>
-        <jackson.version>2.6.7.1</jackson.version>
+        <jackson.version>2.12.6.1</jackson.version>
         <junit.version>4.12</junit.version>
     </properties>