diff --git a/pom.xml b/pom.xml
index c44e39d..d2dcb88 100644
--- a/pom.xml
+++ b/pom.xml
@@ -39,7 +39,7 @@
         <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
         <junit.version>4.12</junit.version>
         <akka.version>2.5.11</akka.version>
-        <slf4j.version>1.7.25</slf4j.version>
+        <slf4j.version>1.7.31</slf4j.version>
         <akka-persistence-inmemory.version>0.2.1</akka-persistence-inmemory.version>
         <maven-gpg-plugin.version>1.6</maven-gpg-plugin.version>
         <maven-javadoc-plugin.version>2.10.2</maven-javadoc-plugin.version>