diff --git a/manual/pom.xml b/manual/pom.xml
index ed0b2c627..dfe4a9e14 100644
--- a/manual/pom.xml
+++ b/manual/pom.xml
@@ -85,7 +85,7 @@
         <dependency>
             <groupId>ch.qos.logback</groupId>
             <artifactId>logback-classic</artifactId>
-            <version>1.0.0</version>
+            <version>1.2.0</version>
         </dependency>
         <dependency>
             <groupId>org.slf4j</groupId>