diff --git a/blog/Gemfile.lock b/blog/Gemfile.lock
index 37f5cff..25bccd9 100644
--- a/blog/Gemfile.lock
+++ b/blog/Gemfile.lock
@@ -247,7 +247,7 @@ GEM
     thread_safe (0.3.6)
     typhoeus (1.4.0)
       ethon (>= 0.9.0)
-    tzinfo (1.2.9)
+    tzinfo (1.2.10)
       thread_safe (~> 0.1)
     unf (0.1.4)
       unf_ext