diff --git a/Gemfile.lock b/Gemfile.lock
index 08f8581eb..71429063e 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -6,18 +6,18 @@ GEM
     colorator (1.1.0)
     concurrent-ruby (1.1.9)
     cssminify2 (2.0.1)
-    em-websocket (0.5.2)
+    em-websocket (0.5.3)
       eventmachine (>= 0.12.9)
-      http_parser.rb (~> 0.6.0)
+      http_parser.rb (~> 0)
     eventmachine (1.2.7)
     execjs (2.8.1)
-    ffi (1.15.3)
+    ffi (1.15.5)
     forwardable-extended (2.6.0)
     htmlcompressor (0.4.0)
-    http_parser.rb (0.6.0)
-    i18n (1.8.10)
+    http_parser.rb (0.8.0)
+    i18n (1.8.11)
       concurrent-ruby (~> 1.0)
-    jekyll (4.2.0)
+    jekyll (4.2.1)
       addressable (~> 2.4)
       colorator (~> 1.0)
       em-websocket (~> 0.5)
@@ -40,13 +40,13 @@ GEM
       uglifier (~> 4.1)
     jekyll-paginate-v2 (3.0.0)
       jekyll (>= 3.0, < 5.0)
-    jekyll-polyglot (1.4.1)
+    jekyll-polyglot (1.5.0)
       jekyll (>= 3.0)
     jekyll-sass-converter (2.1.0)
       sassc (> 2.0.1, < 3.0)
     jekyll-watch (2.2.1)
       listen (~> 3.0)
-    json (2.5.1)
+    json (2.6.1)
     json-minify (0.0.3)
       json (> 0)
     kramdown (2.3.1)
@@ -54,7 +54,7 @@ GEM
     kramdown-parser-gfm (1.1.0)
       kramdown (~> 2.0)
     liquid (4.0.3)
-    listen (3.5.1)
+    listen (3.7.0)
       rb-fsevent (~> 0.10, >= 0.10.3)
       rb-inotify (~> 0.9, >= 0.9.10)
     mercenary (0.4.0)
@@ -65,7 +65,7 @@ GEM
     rb-inotify (0.10.1)
       ffi (~> 1.0)
     rexml (3.2.5)
-    rouge (3.26.0)
+    rouge (3.27.0)
     safe_yaml (1.0.5)
     sassc (2.4.0)
       ffi (~> 1.9)
@@ -73,7 +73,7 @@ GEM
       unicode-display_width (~> 1.1, >= 1.1.1)
     uglifier (4.2.0)
       execjs (>= 0.3.0, < 3)
-    unicode-display_width (1.7.0)
+    unicode-display_width (1.8.0)
 
 PLATFORMS
   ruby
@@ -85,4 +85,4 @@ DEPENDENCIES
   jekyll-polyglot
 
 BUNDLED WITH
-   2.2.9
+   2.3.4