diff --git a/pom.xml b/pom.xml
index 7fe2aac..234f181 100644
--- a/pom.xml
+++ b/pom.xml
@@ -69,7 +69,7 @@
         <dependency>
             <groupId>com.fasterxml.jackson.core</groupId>
             <artifactId>jackson-databind</artifactId>
-            <version>2.7.8</version>
+            <version>2.12.6.1</version>
         </dependency>
 
         <dependency>
diff --git a/structure-learn/serialization-learn/pom.xml b/structure-learn/serialization-learn/pom.xml
index cf805a8..2dd5ff0 100644
--- a/structure-learn/serialization-learn/pom.xml
+++ b/structure-learn/serialization-learn/pom.xml
@@ -32,7 +32,7 @@
         <dependency>
             <groupId>com.fasterxml.jackson.core</groupId>
             <artifactId>jackson-databind</artifactId>
-            <version>2.9.8</version>
+            <version>2.12.6.1</version>
         </dependency>
         <dependency>
             <groupId>com.google.protobuf</groupId>