diff --git a/Gemfile.lock b/Gemfile.lock
index ea051b3..9810cf5 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -291,7 +291,7 @@ GEM
       simple_oauth (~> 0.1.4)
     twitter-text (1.6.1)
       unf (~> 0.0.5)
-    tzinfo (0.3.37)
+    tzinfo (0.3.61)
     uglifier (2.1.1)
       execjs (>= 0.3.0)
       multi_json (~> 1.0, >= 1.0.2)