diff --git a/CHANGELOG.md b/CHANGELOG.md
index e967847..939d4bd 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -2,6 +2,7 @@
 All notable changes to this project will be documented in this file.
 
 ## [Unreleased]
+- support for `ActiveSupport::Cache::MemCacheStore`;
 - configuration layer `AnyCache.configure`: an ability to choose and configure a necessary cache client
   without any explicit client object instantiation (client object will be instantiated implicitly);
 
diff --git a/README.md b/README.md
index ded9d69..f90d3eb 100644
--- a/README.md
+++ b/README.md
@@ -42,7 +42,7 @@ require 'any_cache'
         - [AnyCache with Redis::Store](#anycache-with-redisstore)
         - [AnyCache with Dalli::Client](#anycache-with-dalliclient)
         - [AnyCache with ActiveSupport::Cache::RedisCacheStore](#anycache-with-activesupportcacherediscachestore)
-        - [AnyCache with ActiveSupport::Cache::MemCacheStore](#anycache-with-activesupportmemcachestore)
+        - [AnyCache with ActiveSupport::Cache::MemCacheStore](#anycache-with-activesupportcachememcachestore)
         - [AnyCache with ActiveSupport::Cache::FileStore](#anycache-with-activesupportcachefilestore)
         - [AnyCache with ActiveSupport::Cache::MemoryStore](#anycache-with-activesupportcachememorystore)
     - [Many cache storages](#many-cache-storages)
@@ -69,8 +69,8 @@ Supported clients:
 - `Redis`
 - `Redis::Store`
 - `Dalli::Client`
-- `ActiveSupport::Cache::MemCacheStore`
 - `ActiveSupport::Cache::RedisCacheStore`
+- `ActiveSupport::Cache::MemCacheStore`
 - `ActiveSupport::Cache::FileStore`
 - `ActiveSupport::Cache::MemoryStore`
 
@@ -116,7 +116,7 @@ Supported drivers:
 
 - `:redis` - [Redis](#anycache-with-redis);
 - `:redis_tore` - [Redis::Client](#anycache-with-redisstore);
-- `:dalli` - [Dalli::Clien](#anycache-with-dalliclient);
+- `:dalli` - [Dalli::Client](#anycache-with-dalliclient);
 - `:as_redis_cache_store` - [ActiveSupport::Cache::RedisCacheStore](#anycache-with-activesupportcacherediscachestore);
 - `:as_mem_cache_store` - [ActiveSupport::Cache::MemCacheStore](#anycache-with-activesupportcachememcachestore);
 - `:as_file_store` - [ActiveSupport::Cache::FileStore](#anycache-with-activesupportcachefilestore);
@@ -415,16 +415,11 @@ bin/rspec --test-dalli # run specs with Dalli::Client
 bin/rspec --test-as-file-store # run specs with ActiveSupport::Cache::FileStore
 bin/rspec --test-as-memory-store # run specs with ActiveSupport::Cache::MemoryStore
 bin/rspec --test-as-redis-cache-store # run specs with ActiveSupport::Cache::RedisCacheStore
+bin/rspec --test-as-mem-cache-store # run specs with ActiveSupport::Cache::MemCacheStore
 ```
 
 ---
 
-## Roadmap
-
-- configuration layer with ability to instantiate cache clients implicitly
-
----
-
 ## Contributing
 
 - Fork it (https://github.com/0exp/any_cache/fork)
diff --git a/any_cache.gemspec b/any_cache.gemspec
index 02c8e65..854db6b 100644
--- a/any_cache.gemspec
+++ b/any_cache.gemspec
@@ -27,12 +27,12 @@ Gem::Specification.new do |spec|
     `git ls-files -z`.split("\x0").reject { |f| f.match(%r{^(spec|features)/}) }
   end
 
-  spec.add_dependency 'concurrent-ruby',    '~> 1.0'
-  spec.add_development_dependency 'qonfig', '~> 0.6'
+  spec.add_dependency 'concurrent-ruby', '~> 1.0'
+  spec.add_dependency 'qonfig',          '~> 0.6'
 
   spec.add_development_dependency 'coveralls',        '~> 0.8'
   spec.add_development_dependency 'simplecov',        '~> 0.16'
-  spec.add_development_dependency 'armitage-rubocop', '~> 0.6'
+  spec.add_development_dependency 'armitage-rubocop', '~> 0.7'
   spec.add_development_dependency 'rspec',            '~> 3.8'
 
   spec.add_development_dependency 'bundler'
diff --git a/bin/rspec b/bin/rspec
index a9f55dc..72fa39c 100755
--- a/bin/rspec
+++ b/bin/rspec
@@ -17,7 +17,7 @@ module AnyCacheSpecRunner
     dalli:                     expand_gemfile_path('dalli.gemfile'),
     active_support:            expand_gemfile_path('active_support.gemfile'),
     active_support_with_redis: expand_gemfile_path('active_support_with_redis.gemfile'),
-    active_support_with_dalli: expand_gemfile_path('active_support_with_dalli.gemfile'),
+    active_support_with_dalli: expand_gemfile_path('active_support_with_dalli.gemfile')
   }.freeze
 
   # rubocop:disable Metrics/MethodLength, Metrics/BlockLength
diff --git a/lib/any_cache/adapters/active_support_mem_cache_store.rb b/lib/any_cache/adapters/active_support_mem_cache_store.rb
index b99ef74..443688a 100644
--- a/lib/any_cache/adapters/active_support_mem_cache_store.rb
+++ b/lib/any_cache/adapters/active_support_mem_cache_store.rb
@@ -101,7 +101,7 @@ def decrement(key, amount = DEFAULT_INCR_DECR_AMOUNT, **options)
       if is_initial
         # NOTE: Dalli::Client can't decrement:
         #   - non-raw values;
-        #   - values lower lower than zero;
+        #   - values lower than zero;
         #   - empty entries;
         write(key, INITIAL_DECREMNETED_VALUE, expires_in: expires_in) && INITIAL_DECREMNETED_VALUE
       else
diff --git a/lib/any_cache/drivers/active_support_mem_cache_store.rb b/lib/any_cache/drivers/active_support_mem_cache_store.rb
index cafc81a..19a6731 100644
--- a/lib/any_cache/drivers/active_support_mem_cache_store.rb
+++ b/lib/any_cache/drivers/active_support_mem_cache_store.rb
@@ -1,4 +1,4 @@
-# frozen_string_ltieral: true
+# frozen_string_literal: true
 
 module AnyCache::Drivers::ActiveSupportMemCacheStore
   class << self
@@ -19,9 +19,7 @@ def supported_source?(driver)
     # @api private
     # @since 0.2.0
     def build(settings)
-      ::ActiveSupport::Cache::MemCacheStore.new([
-        Array(settings.servers), settings.options
-      ])
+      ::ActiveSupport::Cache::MemCacheStore.new([Array(settings.servers), settings.options])
     end
   end
 end
diff --git a/lib/any_cache/drivers/dalli.rb b/lib/any_cache/drivers/dalli.rb
index 13669b0..fd98a31 100644
--- a/lib/any_cache/drivers/dalli.rb
+++ b/lib/any_cache/drivers/dalli.rb
@@ -19,7 +19,7 @@ def supported_source?(driver)
     # @api private
     # @sicne 0.2.0
     def build(settings)
-      ::Dalli::Client.new(settings.servers, settings.options)
+      ::Dalli::Client.new(Array(settings.servers), settings.options)
     end
   end
 end
diff --git a/spec/features/increment_spec.rb b/spec/features/increment_spec.rb
index ccad4c7..1276fb3 100644
--- a/spec/features/increment_spec.rb
+++ b/spec/features/increment_spec.rb
@@ -69,7 +69,7 @@
   context 'with previously defined permanent entry' do
     before { cache_store.write(entry[:key], entry[:value]) }
 
-    # it_behaves_like 'incrementation'
+    it_behaves_like 'incrementation'
 
     context 'with re-expiration' do
       specify 'entry gets new expiration time' do
diff --git a/spec/support/spec_support/cache/active_support_mem_cache_store.rb b/spec/support/spec_support/cache/active_support_mem_cache_store.rb
index a71fc20..5aa2c0f 100644
--- a/spec/support/spec_support/cache/active_support_mem_cache_store.rb
+++ b/spec/support/spec_support/cache/active_support_mem_cache_store.rb
@@ -5,7 +5,7 @@ class CacheStore < AnyCache
     configure do |conf|
       conf.driver = :as_mem_cache_store
       conf.as_mem_cache_store.servers = '127.0.0.1:11211'
-      conf.as_mem_cache_store.options = { namespace: 'blastwave' }
+      conf.as_mem_cache_store.options = { namespace: 'any_cache' }
     end
   end
 
diff --git a/spec/support/spec_support/cache/dalli.rb b/spec/support/spec_support/cache/dalli.rb
index 4f57063..dd868dd 100644
--- a/spec/support/spec_support/cache/dalli.rb
+++ b/spec/support/spec_support/cache/dalli.rb
@@ -5,7 +5,7 @@ class CacheStore < AnyCache
     configure do |conf|
       conf.driver = :dalli
       conf.dalli.servers = '127.0.0.1:11211'
-      conf.dalli.options = { namespace: 'blastwave' }
+      conf.dalli.options = { namespace: 'any_cache' }
     end
   end