diff --git a/Gemfile.lock b/Gemfile.lock
index bba8049..7aff8d5 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -262,7 +262,7 @@ 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
@@ -272,6 +272,7 @@ GEM
 
 PLATFORMS
   x86_64-darwin-16
+  x86_64-linux
 
 DEPENDENCIES
   github-pages