diff --git a/Gemfile.lock b/Gemfile.lock
index f9ca89c..1f390b4 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -24,7 +24,7 @@ GEM
     paho-mqtt (1.0.12)
     puma (6.0.0)
       nio4r (~> 2.0)
-    rack (2.2.4)
+    rack (2.2.6.2)
     rack-protection (2.2.3)
       rack
     ruby2_keywords (0.0.5)