diff --git a/apps/nancy/Gemfile.lock b/apps/nancy/Gemfile.lock
index 499589f..288a3a0 100644
--- a/apps/nancy/Gemfile.lock
+++ b/apps/nancy/Gemfile.lock
@@ -4,7 +4,7 @@ GEM
     nancy (0.3.0)
       rack
       tilt
-    rack (2.0.1)
+    rack (3.0.4.2)
     tilt (2.0.5)
 
 PLATFORMS