diff --git a/Gemfile.lock b/Gemfile.lock
index 07cbfc5..2657e92 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -11,11 +11,12 @@ GIT
 GEM
   remote: https://rubygems.org/
   specs:
-    activesupport (5.2.5)
+    activesupport (6.1.3.2)
       concurrent-ruby (~> 1.0, >= 1.0.2)
-      i18n (>= 0.7, < 2)
-      minitest (~> 5.1)
-      tzinfo (~> 1.1)
+      i18n (>= 1.6, < 2)
+      minitest (>= 5.1)
+      tzinfo (~> 2.0)
+      zeitwerk (~> 2.3)
     addressable (2.7.0)
       public_suffix (>= 2.0.2, < 5.0)
     backports (3.21.0)
@@ -25,7 +26,7 @@ GEM
       coffee-script-source
       execjs
     coffee-script-source (1.12.2)
-    concurrent-ruby (1.1.8)
+    concurrent-ruby (1.1.9)
     contracts (0.13.0)
     dotenv (2.7.6)
     em-websocket (0.5.2)
@@ -33,11 +34,11 @@ GEM
       http_parser.rb (~> 0.6.0)
     erubis (2.7.0)
     eventmachine (1.2.7)
-    execjs (2.7.0)
+    execjs (2.8.1)
     fast_blank (1.0.0)
-    fastimage (2.2.3)
-    ffi (1.15.0)
-    haml (5.1.2)
+    fastimage (2.2.4)
+    ffi (1.15.3)
+    haml (5.2.1)
       temple (>= 0.8.0)
       tilt
     hamster (3.0.0)
@@ -46,7 +47,7 @@ GEM
     highline (2.0.3)
     htmlcompressor (0.2.0)
     http_parser.rb (0.6.0)
-    i18n (0.9.5)
+    i18n (1.6.0)
       concurrent-ruby (~> 1.0)
     kramdown (2.3.1)
       rexml
@@ -55,19 +56,19 @@ GEM
       rb-inotify (~> 0.9, >= 0.9.7)
     memoist (0.16.2)
     method_source (1.0.0)
-    middleman (4.3.11)
+    middleman (4.4.0)
       coffee-script (~> 2.2)
       haml (>= 4.0.5)
       kramdown (>= 2.3.0)
-      middleman-cli (= 4.3.11)
-      middleman-core (= 4.3.11)
-    middleman-cli (4.3.11)
+      middleman-cli (= 4.4.0)
+      middleman-core (= 4.4.0)
+    middleman-cli (4.4.0)
       thor (>= 0.17.0, < 2.0)
-    middleman-core (4.3.11)
-      activesupport (>= 4.2, < 6.0)
-      addressable (~> 2.3)
+    middleman-core (4.4.0)
+      activesupport (>= 6.1, < 7.0)
+      addressable (~> 2.4)
       backports (~> 3.6)
-      bundler
+      bundler (~> 2.0)
       contracts (~> 0.13.0)
       dotenv
       erubis
@@ -76,16 +77,18 @@ GEM
       fastimage (~> 2.0)
       hamster (~> 3.0)
       hashie (~> 3.4)
-      i18n (~> 0.9.0)
+      i18n (~> 1.6.0)
       listen (~> 3.0.0)
       memoist (~> 0.14)
-      padrino-helpers (~> 0.13.0)
+      padrino-helpers (~> 0.15.0)
       parallel
       rack (>= 1.4.5, < 3)
       sassc (~> 2.0)
       servolux
       tilt (~> 2.0.9)
+      toml
       uglifier (~> 3.0)
+      webrick
     middleman-livereload (3.4.7)
       em-websocket (~> 0.5.1)
       middleman-core (>= 3.3)
@@ -97,13 +100,13 @@ GEM
     net-sftp (2.1.2)
       net-ssh (>= 2.6.5)
     net-ssh (5.2.0)
-    padrino-helpers (0.13.3.4)
-      i18n (~> 0.6, >= 0.6.7)
-      padrino-support (= 0.13.3.4)
+    padrino-helpers (0.15.1)
+      i18n (>= 0.6.7, < 2)
+      padrino-support (= 0.15.1)
       tilt (>= 1.4.1, < 3)
-    padrino-support (0.13.3.4)
-      activesupport (>= 3.1)
+    padrino-support (0.15.1)
     parallel (1.20.1)
+    parslet (2.0.0)
     pry (0.14.1)
       coderay (~> 1.1)
       method_source (~> 1.0)
@@ -115,7 +118,7 @@ GEM
     rainbow (2.2.2)
       rake
     rake (13.0.3)
-    rb-fsevent (0.10.4)
+    rb-fsevent (0.11.0)
     rb-inotify (0.10.1)
       ffi (~> 1.0)
     rexml (3.2.5)
@@ -131,13 +134,16 @@ GEM
       sass (~> 3.4.1)
     servolux (0.13.0)
     temple (0.8.2)
-    thor (1.0.1)
-    thread_safe (0.3.6)
+    thor (1.1.0)
     tilt (2.0.10)
-    tzinfo (1.2.9)
-      thread_safe (~> 0.1)
+    toml (0.3.0)
+      parslet (>= 1.8.0, < 3.0.0)
+    tzinfo (2.0.4)
+      concurrent-ruby (~> 1.0)
     uglifier (3.2.0)
       execjs (>= 0.3.0, < 3)
+    webrick (1.7.0)
+    zeitwerk (2.4.2)
 
 PLATFORMS
   ruby