diff --git a/spec/dummy-app/Gemfile.lock b/spec/dummy-app/Gemfile.lock
index 69f1169..1b85ff2 100644
--- a/spec/dummy-app/Gemfile.lock
+++ b/spec/dummy-app/Gemfile.lock
@@ -141,7 +141,7 @@ GEM
     thor (0.20.3)
     thread_safe (0.3.6)
     tilt (2.0.9)
-    tzinfo (1.2.5)
+    tzinfo (1.2.10)
       thread_safe (~> 0.1)
     web-console (3.7.0)
       actionview (>= 5.0)