diff --git a/Gemfile b/Gemfile
index 5ff8b8908..ed09109de 100644
--- a/Gemfile
+++ b/Gemfile
@@ -24,7 +24,7 @@ gem 'devise_lastseenable', '0.0.4'
 
 # Captcha
 
-gem 'simple_captcha2', '0.2.1', :require => 'simple_captcha'
+gem 'simple_captcha2', '0.3.2', :require => 'simple_captcha'
 
 # Background processing
 
diff --git a/Gemfile.lock b/Gemfile.lock
index e039c78f0..1dddef0d8 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -422,8 +422,8 @@ GEM
       json
       redis (>= 3.0.6)
       redis-namespace (>= 1.3.1)
-    simple_captcha2 (0.2.1)
-      rails (>= 3.1)
+    simple_captcha2 (0.3.2)
+      rails (>= 4.1)
     simple_oauth (0.2.0)
     sinatra (1.3.3)
       rack (~> 1.3, >= 1.3.6)
@@ -562,7 +562,7 @@ DEPENDENCIES
   sass-rails (= 4.0.3)
   selenium-webdriver (= 2.42.0)
   sidekiq (= 2.17.7)
-  simple_captcha2 (= 0.2.1)
+  simple_captcha2 (= 0.3.2)
   sinatra (= 1.3.3)
   sinon-rails (= 1.9.0)
   spork (= 1.0.0rc4)