diff --git a/Gemfile b/Gemfile
index 06e7696da..6f7c88ea8 100644
--- a/Gemfile
+++ b/Gemfile
@@ -72,7 +72,7 @@ gem "omniauth-google-oauth2", "0.5.3"
 
 gem "paperclip", "~> 5.2"
 gem "pundit", "~> 1.1"
-gem "recaptcha", "~> 4.6", require: "recaptcha/rails"
+gem "recaptcha", "~> 4.7", require: "recaptcha/rails"
 
 # Admin backend.
 # @todo Get rid of this, possibly by completely ditching activeadmin and
diff --git a/Gemfile.lock b/Gemfile.lock
index b05e4902e..9c192953b 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -318,7 +318,7 @@ GEM
     rb-fsevent (0.10.2)
     rb-inotify (0.9.10)
       ffi (>= 0.5.0, < 2)
-    recaptcha (4.6.4)
+    recaptcha (4.7.0)
       json
     record_tag_helper (1.0.0)
       actionview (~> 5.x)
@@ -454,7 +454,7 @@ DEPENDENCIES
   rails (~> 5.1)
   rails-controller-testing (~> 1.0)
   rails-i18n (~> 5.1)
-  recaptcha (~> 4.6)
+  recaptcha (~> 4.7)
   record_tag_helper (~> 1.0)
   redis-rails (~> 5.0)
   rest-client (~> 2.0)