diff --git a/Gemfile b/Gemfile
index c3f5eae54..06e0072e8 100644
--- a/Gemfile
+++ b/Gemfile
@@ -18,7 +18,7 @@ gem 'paper_trail'
 group :dependencies do
   gem 'mysql2', '< 0.6'
   gem 'image_science', '1.3.1'
-  gem 'recaptcha', '~> 5.10.0', require: 'recaptcha/rails'
+  gem 'recaptcha', '~> 5.12.3', require: 'recaptcha/rails'
   gem 'oa-openid', '0.3.2'
   gem 'ruby-openid', '~>2.9'
   gem 'open_id_authentication'
diff --git a/Gemfile.lock b/Gemfile.lock
index 858052f4a..057cf28c7 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -236,7 +236,7 @@ GEM
     rb-inotify (0.10.1)
       ffi (~> 1.0)
     rdiscount (2.2.0.2)
-    recaptcha (5.10.0)
+    recaptcha (5.12.3)
       json
     redcarpet (3.5.1)
     regexp_parser (2.5.0)
@@ -388,7 +388,7 @@ DEPENDENCIES
   rails-perftest
   rake (~> 13.0.1)
   rdiscount (= 2.2.0.2)
-  recaptcha (~> 5.10.0)
+  recaptcha (~> 5.12.3)
   right_aws_api (~> 0.3.5)
   rubocop
   rubocop-performance