diff --git a/service-locator/README.md b/service-locator/README.md
index 75a00ca57..479c9ed0f 100644
--- a/service-locator/README.md
+++ b/service-locator/README.md
@@ -38,7 +38,6 @@ improves the performance of application to great extent.
 * Violates Interface Segregation Principle (ISP) by providing pattern consumers with an access 
 to a number of services that they don't potentially need.
 * Creates hidden dependencies that can break the clients at runtime.
-* Limits object composability by stopping the clients to specify needed dependencies for different objects instantiation.
 
 ## Credits
 
diff --git a/singleton/README.md b/singleton/README.md
index 38a05349b..4032ffaed 100644
--- a/singleton/README.md
+++ b/singleton/README.md
@@ -40,6 +40,8 @@ Use the Singleton pattern when
 
 * Violates Single Responsibility Principle (SRP) by controlling their own creation and lifecycle.
 * Encourages using a global shared instance which prevents an object and resources used by this object from being deallocated.     
+* Creates tightly coupled code that is difficult to test.
+* Makes it almost impossible to subclass a Singleton.
 
 ## Credits