diff --git a/CHANGELOG.md b/CHANGELOG.md
index e531895..016a1c4 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,8 @@
+0.2.1
+-----
+
+- Fix issue when cache dir not exist.
+
 0.2.0
 -----
 
diff --git a/lib/rucaptcha/cache.rb b/lib/rucaptcha/cache.rb
index 783f7bd..d82b23c 100644
--- a/lib/rucaptcha/cache.rb
+++ b/lib/rucaptcha/cache.rb
@@ -1,3 +1,5 @@
+require 'fileutils'
+
 module RuCaptcha
   # File Cache
   module Cache
@@ -31,6 +33,9 @@ module RuCaptcha
         return @cache if defined?(@cache)
 
         cache_path = Rails.root.join('tmp', 'cache', 'rucaptcha')
+        if !File.exists? cache_path
+          FileUtils.mkdir_p(cache_path)
+        end
         @cache = ActiveSupport::Cache::FileStore.new(cache_path)
         @cache.clear
         @cache
diff --git a/lib/rucaptcha/version.rb b/lib/rucaptcha/version.rb
index 4269518..808d2fb 100644
--- a/lib/rucaptcha/version.rb
+++ b/lib/rucaptcha/version.rb
@@ -1,3 +1,3 @@
 module RuCaptcha
-  VERSION = '0.2.0'
+  VERSION = '0.2.1'
 end