diff --git a/Gemfile.lock b/Gemfile.lock
index 9743156..7ebc1c2 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -45,9 +45,13 @@ GEM
     fast_blank (1.0.1)
     fastimage (2.4.0)
     ffi (1.17.2-arm64-darwin)
+    ffi (1.17.2-x86_64-linux-gnu)
     google-protobuf (4.31.1-arm64-darwin)
       bigdecimal
       rake (>= 13)
+    google-protobuf (4.31.1-x86_64-linux-gnu)
+      bigdecimal
+      rake (>= 13)
     govuk_tech_docs (5.0.2)
       autoprefixer-rails (~> 10.2)
       base64
@@ -82,6 +86,7 @@ GEM
     kramdown (2.5.1)
       rexml (>= 3.3.9)
     libv8-node (18.16.0.0-arm64-darwin)
+    libv8-node (18.16.0.0-x86_64-linux)
     listen (3.9.0)
       rb-fsevent (~> 0.10, >= 0.10.3)
       rb-inotify (~> 0.9, >= 0.9.10)
@@ -147,6 +152,8 @@ GEM
     mutex_m (0.3.0)
     nokogiri (1.18.8-arm64-darwin)
       racc (~> 1.4)
+    nokogiri (1.18.8-x86_64-linux-gnu)
+      racc (~> 1.4)
     openapi3_parser (0.9.2)
       commonmarker (~> 0.17)
     padrino-helpers (0.15.3)
@@ -158,7 +165,7 @@ GEM
     parslet (2.0.0)
     public_suffix (6.0.2)
     racc (1.8.1)
-    rack (2.2.17)
+    rack (2.2.20)
     rack-livereload (0.3.17)
       rack
     rake (13.3.0)
@@ -171,6 +178,8 @@ GEM
     sass (3.4.25)
     sass-embedded (1.89.2-arm64-darwin)
       google-protobuf (~> 4.31)
+    sass-embedded (1.89.2-x86_64-linux-gnu)
+      google-protobuf (~> 4.31)
     sassc (2.4.0)
       ffi (~> 1.9)
     sassc-embedded (1.78.0)
@@ -195,6 +204,7 @@ GEM
 
 PLATFORMS
   arm64-darwin-23
+  x86_64-linux
 
 DEPENDENCIES
   govuk_tech_docs (~> 5.0.2)