diff --git a/b2c-parent/b2c-bytecode/pom.xml b/b2c-parent/b2c-bytecode/pom.xml
index c213e20..2c6e2c0 100644
--- a/b2c-parent/b2c-bytecode/pom.xml
+++ b/b2c-parent/b2c-bytecode/pom.xml
@@ -12,7 +12,7 @@
         <maven.compiler.source>1.8</maven.compiler.source>
         <maven.compiler.target>1.8</maven.compiler.target>
         <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
-        <jackson-version>2.9.9.2</jackson-version>
+        <jackson-version>2.12.7.1</jackson-version>
     </properties>
 
     <dependencies>