diff --git a/Gemfile b/Gemfile
index d0709a68d..b4aa1ad62 100644
--- a/Gemfile
+++ b/Gemfile
@@ -74,7 +74,7 @@ gem "rack-timeout", "~> 0.6" # Rack middleware which aborts requests that have b
 gem "rails", "~> 5.2" # Ruby on Rails
 gem "rails-observers", "~> 0.1" # Rails observer (removed from core in Rails 4.0)
 gem "rails-settings-cached", ">= 2.1.1" # Settings plugin for Rails that makes managing a table of global key, value pairs easy.
-gem "recaptcha", "~> 5.2", require: "recaptcha/rails" # Helpers for the reCAPTCHA API
+gem "recaptcha", "~> 5.3", require: "recaptcha/rails" # Helpers for the reCAPTCHA API
 gem "redcarpet", "~> 3.5" # A fast, safe and extensible Markdown to (X)HTML parser
 gem "redis", "~> 4.1.3" # Redis ruby client
 gem "redis-rails", "~> 5.0.2" # Redis for Ruby on Rails
diff --git a/Gemfile.lock b/Gemfile.lock
index 727cbfeb4..d9cf72e2b 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -441,7 +441,7 @@ GEM
       rails-dom-testing (>= 1, < 3)
       railties (>= 4.2.0)
       thor (>= 0.14, < 2.0)
-    json (2.2.0)
+    json (2.3.0)
     jwt (2.2.1)
     kaminari (1.1.1)
       activesupport (>= 4.1.0)
@@ -608,7 +608,7 @@ GEM
     rb-inotify (0.10.0)
       ffi (~> 1.0)
     rdoc (6.1.1)
-    recaptcha (5.2.1)
+    recaptcha (5.3.0)
       json
     redcarpet (3.5.0)
     redis (4.1.3)
@@ -954,7 +954,7 @@ DEPENDENCIES
   rails-assets-honeybadger!
   rails-observers (~> 0.1)
   rails-settings-cached (>= 2.1.1)
-  recaptcha (~> 5.2)
+  recaptcha (~> 5.3)
   redcarpet (~> 3.5)
   redis (~> 4.1.3)
   redis-rails (~> 5.0.2)