diff --git a/Gemfile.lock b/Gemfile.lock
index d5953dd..6be7213 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -7,9 +7,8 @@ GEM
       minitest (~> 5.1)
       tzinfo (~> 1.1)
     colored (1.2)
-    commonmarker (0.20.0)
-      ruby-enum (~> 0.5)
-    concurrent-ruby (1.1.5)
+    commonmarker (0.23.6)
+    concurrent-ruby (1.1.10)
     escape_utils (1.2.1)
     extended-markdown-filter (0.7.0)
       html-pipeline (~> 2.9)
@@ -28,7 +27,7 @@ GEM
     html-pipeline (2.11.0)
       activesupport (>= 2)
       nokogiri (>= 1.4)
-    i18n (1.6.0)
+    i18n (1.12.0)
       concurrent-ruby (~> 1.0)
     mini_portile2 (2.4.0)
     minitest (5.11.3)
@@ -38,8 +37,6 @@ GEM
     rb-fsevent (0.10.3)
     rb-inotify (0.10.0)
       ffi (~> 1.0)
-    ruby-enum (0.7.2)
-      i18n
     sass (3.7.4)
       sass-listen (~> 4.0.0)
     sass-listen (4.0.0)