diff --git a/pom.xml b/pom.xml
index ccdc75fc980..1578e9b8069 100644
--- a/pom.xml
+++ b/pom.xml
@@ -125,7 +125,7 @@ Copyright (c) 2012 - Jeremy Long
         <!-- new versions of lucene are compiled with JDK 1.7 and cannot be used ubiquitously in Jenkins
         thus, we cannot upgrade beyond 4.7.2 -->
         <apache.lucene.version>4.7.2</apache.lucene.version>
-        <slf4j.version>1.7.21</slf4j.version>
+        <slf4j.version>1.7.36</slf4j.version>
         <logback.version>1.1.7</logback.version>
         <!-- Note that Maven will use classes from the distro, ignoring declared dependencies for Maven core... -->
         <maven.api.version>3.3.9</maven.api.version>