diff --git a/Gemfile.lock b/Gemfile.lock
index 7d075bb..47ba9c2 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -1,11 +1,11 @@
 GEM
   remote: https://rubygems.org/
   specs:
-    activesupport (5.2.4.3)
+    activesupport (7.0.4.1)
       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)
     addressable (2.7.0)
       public_suffix (>= 2.0.2, < 5.0)
     autoprefixer-rails (6.7.7.2)
@@ -32,7 +32,7 @@ GEM
       sass (>= 3.3.0, < 3.5)
     compass-import-once (1.0.5)
       sass (>= 3.2, < 3.5)
-    concurrent-ruby (1.1.7)
+    concurrent-ruby (1.1.10)
     contracts (0.13.0)
     dotenv (2.7.6)
     em-websocket (0.5.1)
@@ -44,7 +44,7 @@ GEM
     fast_blank (1.0.0)
     fastimage (2.2.0)
     ffi (1.13.1)
-    govuk_tech_docs (1.8.2)
+    govuk_tech_docs (1.8.3)
       activesupport
       chronic (~> 0.10.2)
       middleman (~> 4.0)
@@ -65,9 +65,9 @@ GEM
       concurrent-ruby (~> 1.0)
     hashie (3.6.0)
     http_parser.rb (0.6.0)
-    i18n (0.9.5)
+    i18n (1.6.0)
       concurrent-ruby (~> 1.0)
-    kramdown (2.3.0)
+    kramdown (2.4.0)
       rexml
     libv8 (3.16.14.19)
     listen (3.0.8)
@@ -75,26 +75,26 @@ GEM
       rb-inotify (~> 0.9, >= 0.9.7)
     memoist (0.16.2)
     method_source (0.9.2)
-    middleman (4.3.8)
+    middleman (4.4.3)
       coffee-script (~> 2.2)
-      haml (>= 4.0.5)
+      haml (>= 4.0.5, < 6.0)
       kramdown (>= 2.3.0)
-      middleman-cli (= 4.3.8)
-      middleman-core (= 4.3.8)
+      middleman-cli (= 4.4.3)
+      middleman-core (= 4.4.3)
     middleman-autoprefixer (2.7.1)
       autoprefixer-rails (>= 6.5.2, < 7.0.0)
       middleman-core (>= 3.3.3)
-    middleman-cli (4.3.8)
+    middleman-cli (4.4.3)
       thor (>= 0.17.0, < 2.0)
     middleman-compass (4.0.1)
       compass (>= 1.0.0, < 2.0.0)
       middleman-core (>= 4.0.0)
-    middleman-core (4.3.8)
-      activesupport (>= 4.2, < 6.0)
-      addressable (~> 2.3)
+    middleman-core (4.4.3)
+      activesupport (>= 6.1, < 7.1)
+      addressable (~> 2.4)
       backports (~> 3.6)
-      bundler
-      contracts (~> 0.13.0)
+      bundler (~> 2.0)
+      contracts (~> 0.13)
       dotenv
       erubis
       execjs (~> 2.0)
@@ -102,16 +102,18 @@ GEM
       fastimage (~> 2.0)
       hamster (~> 3.0)
       hashie (~> 3.4)
-      i18n (~> 0.9.0)
-      listen (~> 3.0.0)
+      i18n (~> 1.6.0)
+      listen (~> 3.0)
       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 (3.4.6)
       em-websocket (~> 0.5.1)
       middleman-core (>= 3.3)
@@ -127,19 +129,19 @@ GEM
       middleman-core (>= 3.2)
       rouge (~> 2.0)
     mini_portile2 (2.4.0)
-    minitest (5.14.1)
+    minitest (5.17.0)
     multi_json (1.13.1)
     nokogiri (1.10.9)
       mini_portile2 (~> 2.4.0)
     openapi3_parser (0.5.2)
       commonmarker (~> 0.17)
-    padrino-helpers (0.13.3.4)
-      i18n (~> 0.6, >= 0.6.7)
-      padrino-support (= 0.13.3.4)
+    padrino-helpers (0.15.2)
+      i18n (>= 0.6.7, < 2)
+      padrino-support (= 0.15.2)
       tilt (>= 1.4.1, < 3)
-    padrino-support (0.13.3.4)
-      activesupport (>= 3.1)
+    padrino-support (0.15.2)
     parallel (1.19.2)
+    parslet (2.0.0)
     pry (0.12.2)
       coderay (~> 1.1.0)
       method_source (~> 0.9.0)
@@ -168,12 +170,14 @@ GEM
       libv8 (~> 3.16.14.15)
       ref
     thor (1.0.1)
-    thread_safe (0.3.6)
     tilt (2.0.10)
-    tzinfo (1.2.7)
-      thread_safe (~> 0.1)
+    toml (0.3.0)
+      parslet (>= 1.8.0, < 3.0.0)
+    tzinfo (2.0.5)
+      concurrent-ruby (~> 1.0)
     uglifier (3.2.0)
       execjs (>= 0.3.0, < 3)
+    webrick (1.7.0)
 
 PLATFORMS
   ruby