diff --git a/structure-learn/disruptor-learn/pom.xml b/structure-learn/disruptor-learn/pom.xml
index cc05010..e59ed78 100644
--- a/structure-learn/disruptor-learn/pom.xml
+++ b/structure-learn/disruptor-learn/pom.xml
@@ -14,7 +14,7 @@
         <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
         <maven.compiler.source>1.8</maven.compiler.source>
         <maven.compiler.target>1.8</maven.compiler.target>
-        <junit.version>4.12</junit.version>
+        <junit.version>4.13.1</junit.version>
         <mockito.version>2.19.1</mockito.version>
         <slf4j.version>1.7.25</slf4j.version>
         <lo4j2.version>2.11.0</lo4j2.version>