diff --git a/build.gradle b/build.gradle
index 0218a76..a155fdc 100644
--- a/build.gradle
+++ b/build.gradle
@@ -22,7 +22,7 @@ buildscript {
     ext.mockitoVersion = '4.8.1'
     ext.scalaSlackClientVersion = '0.4.0'
     ext.scalatestVersion = '3.0.9'
-    ext.slf4jVersion = '2.0.9'
+    ext.slf4jVersion = '2.0.13'
     ext.velocityVersion = '1.7'
 }