diff --git a/com.examples.school/pom.xml b/com.examples.school/pom.xml
index 9930e22..4da0e5e 100644
--- a/com.examples.school/pom.xml
+++ b/com.examples.school/pom.xml
@@ -30,7 +30,7 @@
       <!-- required to see Mongo Java Driver logs -->
       <groupId>ch.qos.logback</groupId>
       <artifactId>logback-classic</artifactId>
-      <version>1.2.3</version>
+      <version>1.2.13</version>
     </dependency>
     <dependency>
       <groupId>junit</groupId>