diff --git a/Gemfile.lock b/Gemfile.lock
index 863413d..75a1f2e 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -47,7 +47,7 @@ GEM
       ripl-multi_line (>= 0.2.4)
       ripl-rack (>= 0.2.0)
       sinatra (>= 1.2.1)
-    tzinfo (1.2.3)
+    tzinfo (1.2.10)
       thread_safe (~> 0.1)
 
 PLATFORMS