diff --git a/Gemfile.lock b/Gemfile.lock
index c987d6fa..5b4d9b19 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -50,9 +50,8 @@ GEM
     bootstrap-will_paginate (0.0.10)
       will_paginate
     builder (3.2.2)
-    byebug (4.0.1)
+    byebug (4.0.2)
       columnize (= 0.9.0)
-      rb-readline (= 0.5.2)
     capistrano (3.3.5)
       capistrano-stats (~> 1.1.0)
       i18n
@@ -217,7 +216,6 @@ GEM
       activesupport (>= 3.0)
       i18n
       polyamorous (~> 1.1)
-    rb-readline (0.5.2)
     rdoc (4.2.0)
       json (~> 1.4)
     ref (1.0.5)