diff --git a/Gemfile.lock b/Gemfile.lock
index 99b80b6c3d15..f209cb625dd3 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -5,8 +5,7 @@ GEM
       public_suffix (>= 2.0.2, < 5.0)
     chunky_png (1.3.11)
     colorator (1.1.0)
-    commonmarker (0.21.0)
-      ruby-enum (~> 0.5)
+    commonmarker (0.23.7)
     compass (1.0.3)
       chunky_png (~> 1.2)
       compass-core (~> 1.0.2)
@@ -19,7 +18,7 @@ GEM
       sass (>= 3.3.0, < 3.5)
     compass-import-once (1.0.5)
       sass (>= 3.2, < 3.5)
-    concurrent-ruby (1.1.6)
+    concurrent-ruby (1.2.0)
     em-websocket (0.5.1)
       eventmachine (>= 0.12.9)
       http_parser.rb (~> 0.6.0)
@@ -29,7 +28,7 @@ GEM
     ffi (1.12.2-x64-mingw32)
     forwardable-extended (2.6.0)
     http_parser.rb (0.6.0)
-    i18n (1.8.2)
+    i18n (1.12.0)
       concurrent-ruby (~> 1.0)
     jekyll (4.0.0)
       addressable (~> 2.4)
@@ -87,8 +86,6 @@ GEM
     rb-inotify (0.10.1)
       ffi (~> 1.0)
     rouge (3.17.0)
-    ruby-enum (0.7.2)
-      i18n
     ruby2_keywords (0.0.2)
     safe_yaml (1.0.5)
     sass (3.4.25)