diff --git a/Gemfile.lock b/Gemfile.lock
index e042797..8d5368f 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -86,7 +86,7 @@ GEM
       websocket-driver (>= 0.2.0)
     powerpack (0.1.2)
     public_suffix (4.0.4)
-    rack (2.2.2)
+    rack (2.2.6.2)
     rack-protection (2.0.8.1)
       rack
     rack-test (1.1.0)