diff --git a/calculator-app/pom.xml b/calculator-app/pom.xml
index c6d1b51..66e0cd6 100644
--- a/calculator-app/pom.xml
+++ b/calculator-app/pom.xml
@@ -126,7 +126,7 @@
 		<dependency>
 			<groupId>ch.qos.logback</groupId>
 			<artifactId>logback-classic</artifactId>
-			<version>1.2.6</version>
+			<version>1.2.13</version>
 		</dependency>
 	</dependencies>