diff --git a/Gemfile.lock b/Gemfile.lock
index de364ac024..d6262a246b 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -17,8 +17,7 @@ GEM
     connection_pool (2.4.1)
     diff-lcs (1.5.1)
     docile (1.4.0)
-    drb (2.2.0)
-      ruby2_keywords
+    drb (2.2.1)
     i18n (1.14.1)
       concurrent-ruby (~> 1.0)
     minitest (5.22.2)
@@ -37,7 +36,6 @@ GEM
       diff-lcs (>= 1.2.0, < 2.0)
       rspec-support (~> 3.13.0)
     rspec-support (3.13.1)
-    ruby2_keywords (0.0.5)
     simplecov (0.22.0)
       docile (~> 1.1)
       simplecov-html (~> 0.11)