diff --git a/Gemfile.lock b/Gemfile.lock
index 323fbf8..d7f86ef 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -1,7 +1,7 @@
 GEM
   remote: https://rubygems.org/
   specs:
-    activesupport (5.2.2)
+    activesupport (5.2.4.3)
       concurrent-ruby (~> 1.0, >= 1.0.2)
       i18n (>= 0.7, < 2)
       minitest (~> 5.1)
@@ -11,7 +11,7 @@ GEM
     asciidoctor (1.5.8)
     colorator (1.1.0)
     colorize (0.8.1)
-    concurrent-ruby (1.1.4)
+    concurrent-ruby (1.1.6)
     em-websocket (0.5.1)
       eventmachine (>= 0.12.9)
       http_parser.rb (~> 0.6.0)
@@ -64,7 +64,7 @@ GEM
       ruby_dep (~> 1.2)
     mercenary (0.3.6)
     mini_portile2 (2.3.0)
-    minitest (5.11.3)
+    minitest (5.14.1)
     nokogiri (1.8.5)
       mini_portile2 (~> 2.3.0)
     nokogiri (1.8.5-x64-mingw32)
@@ -87,9 +87,8 @@ GEM
     thread_safe (0.3.6)
     typhoeus (1.3.1)
       ethon (>= 0.9.0)
-    tzinfo (1.2.5)
+    tzinfo (1.2.7)
       thread_safe (~> 0.1)
-    wdm (0.1.1)
     yell (2.0.7)
 
 PLATFORMS
@@ -103,7 +102,6 @@ DEPENDENCIES
   jekyll-asciidoc (= 2.1.1)
   jekyll-sass-converter (= 1.5.2)
   jekyll-sitemap (= 1.2.0)
-  wdm (>= 0.1.0)
 
 BUNDLED WITH
    1.16.1