diff --git a/algorithms/rxJava/pom.xml b/algorithms/rxJava/pom.xml
index 935b153..b5c444d 100644
--- a/algorithms/rxJava/pom.xml
+++ b/algorithms/rxJava/pom.xml
@@ -30,7 +30,7 @@
         <dependency>
             <groupId>ch.qos.logback</groupId>
             <artifactId>logback-classic</artifactId>
-            <version>1.2.3</version>
+            <version>1.2.13</version>
         </dependency>
         <!-- https://mvnrepository.com/artifact/org.slf4j/slf4j-api -->
         <dependency>