diff --git a/geogateway_django_app/static/geogateway_django_app/bootstrap/Gemfile.lock b/geogateway_django_app/static/geogateway_django_app/bootstrap/Gemfile.lock
index 1b5dc3e90..8e3b2945f 100644
--- a/geogateway_django_app/static/geogateway_django_app/bootstrap/Gemfile.lock
+++ b/geogateway_django_app/static/geogateway_django_app/bootstrap/Gemfile.lock
@@ -3,7 +3,8 @@ GEM
   specs:
     addressable (2.4.0)
     colorator (0.1)
-    ffi (1.9.14-x64-mingw32)
+    ffi (1.12.2)
+    ffi (1.12.2-x64-mingw32)
     jekyll (3.1.6)
       colorator (~> 0.1)
       jekyll-sass-converter (~> 1.0)
@@ -33,6 +34,7 @@ GEM
     sass (3.4.22)
 
 PLATFORMS
+  ruby
   x64-mingw32
 
 DEPENDENCIES