diff --git a/Gemfile.lock b/Gemfile.lock
index a48cfbdd..28052ebd 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -127,7 +127,7 @@ GEM
     treetop (1.6.10)
       polyglot (~> 0.3)
     trollop (2.9.9)
-    tzinfo (1.2.5)
+    tzinfo (1.2.10)
       thread_safe (~> 0.1)
 
 PLATFORMS