diff --git a/lab05_spring5mvc_sec_jdbc/course-app/pom.xml b/lab05_spring5mvc_sec_jdbc/course-app/pom.xml
index 80c64d8..a575528 100644
--- a/lab05_spring5mvc_sec_jdbc/course-app/pom.xml
+++ b/lab05_spring5mvc_sec_jdbc/course-app/pom.xml
@@ -22,7 +22,7 @@
         <jdk.version>1.8</jdk.version>
         <spring.version>5.1.8.RELEASE</spring.version>
         <spring.security.version>5.1.5.RELEASE</spring.security.version>
-        <jackson.version>2.9.9</jackson.version>
+        <jackson.version>2.12.7.1</jackson.version>
         <junit.version>4.11</junit.version>
         <jstl.version>1.2.1</jstl.version>
         <tld.version>1.1.2</tld.version>