diff --git a/CHANGELOG.md b/CHANGELOG.md
index 61204d6..d874043 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,8 @@
+1.1.3
+-----
+
+- Fix #35 just give a warning message if not setup a right cache_store, only raise on :null_store.
+
 1.1.2
 -----
 
diff --git a/Gemfile.lock b/Gemfile.lock
index 2d6d29f..aa3e937 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -1,7 +1,7 @@
 PATH
   remote: .
   specs:
-    rucaptcha (1.1.2)
+    rucaptcha (1.1.3)
       railties (>= 3.2)
 
 GEM
diff --git a/lib/rucaptcha/engine.rb b/lib/rucaptcha/engine.rb
index f3a994e..61b62f2 100644
--- a/lib/rucaptcha/engine.rb
+++ b/lib/rucaptcha/engine.rb
@@ -11,16 +11,21 @@ module RuCaptcha
       cache_store = RuCaptcha.config.cache_store
       store_name = cache_store.is_a?(Array) ? cache_store.first : cache_store
       if [:memory_store, :null_store, :file_store].include?(store_name)
-        raise "
+        msg = "
 
   RuCaptcha's cache_store requirements are stored across processes and machines,
   such as :mem_cache_store, :redis_store, or other distributed storage.
   But your current set is :#{store_name}.
 
   Please make config file `config/initializes/rucaptcha.rb` to setup `cache_store`.
-  More infomation please read GitHub rucaptcha README file.
+  More infomation please read GitHub RuCaptcha README file.
 
 "
+        if store_name == :null_store
+          raise msg
+        else
+          Rails.logger.warn msg
+        end
       end
     end
   end
diff --git a/lib/rucaptcha/version.rb b/lib/rucaptcha/version.rb
index c35894f..1e4de56 100644
--- a/lib/rucaptcha/version.rb
+++ b/lib/rucaptcha/version.rb
@@ -1,3 +1,3 @@
 module RuCaptcha
-  VERSION = '1.1.2'
+  VERSION = '1.1.3'
 end