diff --git a/Gemfile b/Gemfile
index f456c2fca6..74428e0097 100644
--- a/Gemfile
+++ b/Gemfile
@@ -116,7 +116,7 @@ gem 'nokogiri', '~> 1.13.8'
 gem 'open4', '~> 1.3.0'
 gem 'rack', '~> 2.2.4'
 gem 'rack-utf8_sanitizer', '~> 1.7.0'
-gem 'recaptcha', '~> 5.11.0', require: 'recaptcha/rails'
+gem 'recaptcha', '~> 5.12.0', require: 'recaptcha/rails'
 gem 'mini_magick', '~> 4.11.0'
 gem 'rolify', '~> 5.3.0'
 gem 'ruby-msg', '~> 1.5.0', :git => 'https://github.com/mysociety/ruby-msg.git', :branch => 'ascii-encoding'
diff --git a/Gemfile.lock b/Gemfile.lock
index 18c31a7b9b..08104a2c54 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -381,7 +381,7 @@ GEM
     rb-fsevent (0.11.0)
     rb-inotify (0.10.1)
       ffi (~> 1.0)
-    recaptcha (5.11.0)
+    recaptcha (5.12.0)
       json
     regexp_parser (2.5.0)
     representable (3.2.0)
@@ -572,7 +572,7 @@ DEPENDENCIES
   rails (~> 6.1.6)
   rails-controller-testing
   rails-i18n (~> 7.0.5)
-  recaptcha (~> 5.11.0)
+  recaptcha (~> 5.12.0)
   rolify (~> 5.3.0)
   routing-filter (~> 0.7.0)
   rspec-activemodel-mocks (~> 1.1.0)
diff --git a/Gemfile.rails_next.lock b/Gemfile.rails_next.lock
index 5b3e375e60..ac35a8c879 100644
--- a/Gemfile.rails_next.lock
+++ b/Gemfile.rails_next.lock
@@ -405,7 +405,7 @@ GEM
     rb-fsevent (0.11.0)
     rb-inotify (0.10.1)
       ffi (~> 1.0)
-    recaptcha (5.11.0)
+    recaptcha (5.12.0)
       json
     regexp_parser (2.5.0)
     representable (3.2.0)
@@ -600,7 +600,7 @@ DEPENDENCIES
   rails (~> 7.0.3)
   rails-controller-testing
   rails-i18n (~> 7.0.5)
-  recaptcha (~> 5.11.0)
+  recaptcha (~> 5.12.0)
   rolify (~> 5.3.0)
   routing-filter (~> 0.7.0)
   rspec-activemodel-mocks (~> 1.1.0)