diff --git a/Gemfile.lock b/Gemfile.lock
index 3c7c00f..fa23bf6 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -11,9 +11,9 @@ GEM
     ethon (0.12.0)
       ffi (>= 1.3.0)
     eventmachine (1.2.7)
-    ffi (1.13.1)
+    ffi (1.14.2)
     forwardable-extended (2.6.0)
-    html-proofer (3.17.4)
+    html-proofer (3.18.3)
       addressable (~> 2.3)
       mercenary (~> 0.3)
       nokogumbo (~> 2.0)
@@ -24,21 +24,21 @@ GEM
     http_parser.rb (0.6.0)
     i18n (1.8.5)
       concurrent-ruby (~> 1.0)
-    jekyll (4.1.1)
+    jekyll (4.2.0)
       addressable (~> 2.4)
       colorator (~> 1.0)
       em-websocket (~> 0.5)
       i18n (~> 1.0)
       jekyll-sass-converter (~> 2.0)
       jekyll-watch (~> 2.0)
-      kramdown (~> 2.1)
+      kramdown (~> 2.3)
       kramdown-parser-gfm (~> 1.0)
       liquid (~> 4.0)
       mercenary (~> 0.4.0)
       pathutil (~> 0.9)
       rouge (~> 3.0)
       safe_yaml (~> 1.0)
-      terminal-table (~> 1.8)
+      terminal-table (~> 2.0)
     jekyll-archives (2.2.1)
       jekyll (>= 3.6, < 5.0)
     jekyll-paginate (1.1.0)
@@ -75,18 +75,18 @@ GEM
     rb-inotify (0.10.1)
       ffi (~> 1.0)
     rexml (3.2.4)
-    rouge (3.25.0)
+    rouge (3.26.0)
     safe_yaml (1.0.5)
     sassc (2.4.0)
       ffi (~> 1.9)
-    terminal-table (1.8.0)
+    terminal-table (2.0.0)
       unicode-display_width (~> 1.1, >= 1.1.1)
     thread_safe (0.3.6)
     typhoeus (1.4.0)
       ethon (>= 0.9.0)
-    tzinfo (1.2.8)
+    tzinfo (1.2.9)
       thread_safe (~> 0.1)
-    tzinfo-data (1.2020.4)
+    tzinfo-data (1.2020.6)
       tzinfo (>= 1.0.0)
     unicode-display_width (1.7.0)
     wdm (0.1.1)