diff --git a/Gemfile.lock b/Gemfile.lock
index 0988062..a2fe893 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -195,7 +195,7 @@ GEM
     sqlite3 (1.3.13)
     thor (0.20.3)
     thread_safe (0.3.6)
-    tzinfo (1.2.5)
+    tzinfo (1.2.10)
       thread_safe (~> 0.1)
     web3-eth (0.2.31)
       digest-sha3 (~> 1.1.0)