diff --git a/Gemfile.lock b/Gemfile.lock
index 73bd52d..340d660 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -48,7 +48,7 @@ GEM
       diff-lcs (~> 1.1.2)
     sqlite3 (1.3.5)
     term-ansicolor (1.0.7)
-    tzinfo (0.3.31)
+    tzinfo (0.3.61)
     yard (0.7.4)
 
 PLATFORMS