diff --git a/Gemfile.lock b/Gemfile.lock
index 7833cfce..bf3a3fd6 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -349,7 +349,7 @@ GEM
       multi_json (~> 1.0)
       pusher-signature (~> 0.1.8)
     pusher-signature (0.1.8)
-    rack (2.0.3)
+    rack (2.2.3)
     rack-accept (0.4.5)
       rack (>= 0.4)
     rack-conneg (0.1.6)