diff --git a/o2o/pom.xml b/o2o/pom.xml
index 76bb638..32be964 100644
--- a/o2o/pom.xml
+++ b/o2o/pom.xml
@@ -18,7 +18,7 @@
     <maven.compiler.source>1.8</maven.compiler.source>
     <maven.compiler.target>1.8</maven.compiler.target>
     <lombok.version>1.18.12</lombok.version>
-    <junit.version>4.13</junit.version>
+    <junit.version>4.13.1</junit.version>
     <spring.version>5.2.6.RELEASE</spring.version>
     <jackson-databind.version>2.11.0</jackson-databind.version>
     <javax.servlet-api.version>4.0.1</javax.servlet-api.version>