diff --git a/Gemfile.lock b/Gemfile.lock
index b59c16f..659204b 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -1,23 +1,23 @@
 GEM
   remote: https://rubygems.org/
   specs:
-    activesupport (5.2.6)
+    activesupport (5.2.7.1)
       concurrent-ruby (~> 1.0, >= 1.0.2)
       i18n (>= 0.7, < 2)
       minitest (~> 5.1)
       tzinfo (~> 1.1)
     addressable (2.8.0)
       public_suffix (>= 2.0.2, < 5.0)
-    autoprefixer-rails (10.3.3.0)
+    autoprefixer-rails (10.4.7.0)
       execjs (~> 2)
-    backports (3.21.0)
+    backports (3.23.0)
     chronic (0.10.2)
     chunky_png (1.4.0)
     coffee-script (2.4.1)
       coffee-script-source
       execjs
     coffee-script-source (1.12.2)
-    commonmarker (0.23.2)
+    commonmarker (0.23.4)
     compass (1.0.3)
       chunky_png (~> 1.2)
       compass-core (~> 1.0.2)
@@ -30,7 +30,7 @@ GEM
       sass (>= 3.3.0, < 3.5)
     compass-import-once (1.0.5)
       sass (>= 3.2, < 3.5)
-    concurrent-ruby (1.1.9)
+    concurrent-ruby (1.1.10)
     contracts (0.13.0)
     dotenv (2.7.6)
     em-websocket (0.5.3)
@@ -40,9 +40,9 @@ GEM
     eventmachine (1.2.7)
     execjs (2.8.1)
     fast_blank (1.0.1)
-    fastimage (2.2.5)
-    ffi (1.15.4)
-    govuk_tech_docs (3.0.1)
+    fastimage (2.2.6)
+    ffi (1.15.5)
+    govuk_tech_docs (3.2.1)
       autoprefixer-rails (~> 10.2)
       chronic (~> 0.10.2)
       middleman (~> 4.0)
@@ -64,7 +64,7 @@ GEM
     http_parser.rb (0.8.0)
     i18n (0.9.5)
       concurrent-ruby (~> 1.0)
-    kramdown (2.3.1)
+    kramdown (2.4.0)
       rexml
     listen (3.0.8)
       rb-fsevent (~> 0.9, >= 0.9.4)
@@ -121,43 +121,41 @@ GEM
     middleman-syntax (3.2.0)
       middleman-core (>= 3.2)
       rouge (~> 3.2)
-    mini_portile2 (2.6.1)
-    minitest (5.14.4)
+    mini_portile2 (2.8.0)
+    minitest (5.15.0)
     multi_json (1.15.0)
-    nokogiri (1.12.5)
-      mini_portile2 (~> 2.6.1)
+    nokogiri (1.13.4)
+      mini_portile2 (~> 2.8.0)
       racc (~> 1.4)
-    openapi3_parser (0.9.0)
+    openapi3_parser (0.9.2)
       commonmarker (~> 0.17)
-      psych (~> 3.1)
     padrino-helpers (0.13.3.4)
       i18n (~> 0.6, >= 0.6.7)
       padrino-support (= 0.13.3.4)
       tilt (>= 1.4.1, < 3)
     padrino-support (0.13.3.4)
       activesupport (>= 3.1)
-    parallel (1.21.0)
-    psych (3.3.2)
-    public_suffix (4.0.6)
+    parallel (1.22.1)
+    public_suffix (4.0.7)
     racc (1.6.0)
     rack (2.2.3)
     rack-livereload (0.3.17)
       rack
-    rb-fsevent (0.11.0)
+    rb-fsevent (0.11.1)
     rb-inotify (0.10.1)
       ffi (~> 1.0)
     redcarpet (3.5.1)
     rexml (3.2.5)
-    rouge (3.26.1)
+    rouge (3.28.0)
     sass (3.4.25)
     sassc (2.4.0)
       ffi (~> 1.9)
     servolux (0.13.0)
-    sprockets (4.0.2)
+    sprockets (4.0.3)
       concurrent-ruby (~> 1.0)
       rack (> 1, < 3)
     temple (0.8.2)
-    thor (1.1.0)
+    thor (1.2.1)
     thread_safe (0.3.6)
     tilt (2.0.10)
     tzinfo (1.2.9)