diff --git a/ruby/apache_logs/Gemfile.lock b/ruby/apache_logs/Gemfile.lock
index 04a794d..cb89e01 100644
--- a/ruby/apache_logs/Gemfile.lock
+++ b/ruby/apache_logs/Gemfile.lock
@@ -38,8 +38,8 @@ GEM
       pry (>= 0.9.11)
     slop (3.6.0)
     sqlite3 (1.3.11)
-    thread_safe (0.3.5)
-    tzinfo (1.2.2)
+    thread_safe (0.3.6)
+    tzinfo (1.2.10)
       thread_safe (~> 0.1)
 
 PLATFORMS