1 files changed, 1 insertions, 0 deletions
diff --git a/Gemfile.lock b/Gemfile.lock
index 897bdeff83..045000316a 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -88,6 +88,7 @@ PATH
       concurrent-ruby (~> 0.9.0)
       i18n (~> 0.7)
       json (~> 1.7, >= 1.7.7)
+      method_source
       minitest (~> 5.1)
       thread_safe (~> 0.3, >= 0.3.4)
       tzinfo (~> 1.1)