diff --git a/hw4_grader_stuff/hw4_rottenpotatoes/Gemfile.lock b/hw4_grader_stuff/hw4_rottenpotatoes/Gemfile.lock
index 0d5a5ca5..23fa3455 100644
--- a/hw4_grader_stuff/hw4_rottenpotatoes/Gemfile.lock
+++ b/hw4_grader_stuff/hw4_rottenpotatoes/Gemfile.lock
@@ -115,7 +115,7 @@ GEM
     nokogiri (1.6.6.2)
       mini_portile (~> 0.6.0)
     pg (0.18.2)
-    rack (1.6.4)
+    rack (1.6.13)
     rack-test (0.6.3)
       rack (>= 1.0)
     rails (4.2.1)