diff --git a/pom.xml b/pom.xml
index 1bc4e319..5c76a056 100644
--- a/pom.xml
+++ b/pom.xml
@@ -133,7 +133,7 @@
     <dependency>
       <groupId>com.fasterxml.jackson.core</groupId>
       <artifactId>jackson-databind</artifactId>
-      <version>2.9.2</version>
+      <version>2.12.7.1</version>
     </dependency>
     <dependency>
       <groupId>com.alibaba</groupId>
diff --git a/project/netty/netty-4-user-guide/pom.xml b/project/netty/netty-4-user-guide/pom.xml
index b00e4d5d..9aa664d9 100644
--- a/project/netty/netty-4-user-guide/pom.xml
+++ b/project/netty/netty-4-user-guide/pom.xml
@@ -21,7 +21,7 @@
         <maven.compiler.source>1.8</maven.compiler.source>
         <maven.compiler.target>${maven.compiler.source}</maven.compiler.target>
         <netty-all.version>4.1.52.Final</netty-all.version>
-        <jackson.core.version>2.10.1</jackson.core.version>
+        <jackson.core.version>2.12.7.1</jackson.core.version>
         <junit.jupiter.version>5.5.2</junit.jupiter.version>
     </properties>