diff --git a/Gemfile.lock b/Gemfile.lock
index e6f7b56..b677602 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -32,7 +32,7 @@ GEM
       rack (>= 1.0.0)
     rack-test (0.5.7)
       rack (>= 1.0)
-    tzinfo (0.3.27)
+    tzinfo (0.3.61)
 
 PLATFORMS
   ruby