diff --git a/docs/architecture.rst b/docs/architecture.rst
index ad4c967fe..0ec7cab89 100644
--- a/docs/architecture.rst
+++ b/docs/architecture.rst
@@ -39,7 +39,7 @@ Operates with different external databases mentioned below.
    :scale: 75 %
 
 
-   CGRateS high level design
+   Internal Architecture of **cgr-engine**
 
 2.1. cgr-engine
 ---------------
diff --git a/docs/images/CGRateSInternalArchitecture.png b/docs/images/CGRateSInternalArchitecture.png
index 65e13ae3a..d2959c2d5 100644
Binary files a/docs/images/CGRateSInternalArchitecture.png and b/docs/images/CGRateSInternalArchitecture.png differ