diff --git a/exercises/sending-signals-external/practice/pom.xml b/exercises/sending-signals-external/practice/pom.xml
index 37f6b9e..304aaf7 100644
--- a/exercises/sending-signals-external/practice/pom.xml
+++ b/exercises/sending-signals-external/practice/pom.xml
@@ -28,7 +28,7 @@
         <dependency>
             <groupId>ch.qos.logback</groupId>
             <artifactId>logback-classic</artifactId>
-            <version>1.4.8</version>
+            <version>1.4.12</version>
         </dependency>
 
         <dependency>