diff --git a/pom.xml b/pom.xml
index 796cdf728..780511c7d 100644
--- a/pom.xml
+++ b/pom.xml
@@ -557,7 +557,7 @@
 			<!-- Change verbose logging of smile.stat.distribution.* -->
 			<groupId>ch.qos.logback</groupId>
 			<artifactId>logback-classic</artifactId>
-			<version>1.6.3</version>
+			<version>1.6.4</version>
 			<scope>runtime</scope>
 		</dependency>
 		<dependency>