diff --git a/composer.json b/composer.json
index ee8347b..79e7a67 100644
--- a/composer.json
+++ b/composer.json
@@ -10,7 +10,7 @@
         }
     ],
     "autoload": {
-        "psr-4": {"BSR\\" : "src/"}
+        "psr-4": {"Bsr\\" : "src/"}
     },
     "repositories" : [
         {
diff --git a/composer.lock b/composer.lock
index 94b7413..e81f492 100644
--- a/composer.lock
+++ b/composer.lock
@@ -22,7 +22,7 @@
             "type": "library",
             "autoload": {
                 "psr-4": {
-                    "BSR\\Config\\": "src/"
+                    "Bsr\\Config\\": "src/"
                 }
             },
             "authors": [
diff --git a/src/BookSearch/BookSearch.php b/src/BookSearch/BookSearch.php
index da562a6..d0e9edd 100644
--- a/src/BookSearch/BookSearch.php
+++ b/src/BookSearch/BookSearch.php
@@ -1,10 +1,10 @@
 <?php
 
-namespace BSR\BookSearch;
+namespace Bsr\BookSearch;
 
-use BSR\Config\Configuration;
-use BSR\BookSearch\Exception\WebException;
-//use BSR\Webservice\Logger;
+use Bsr\Config\Configuration;
+use Bsr\BookSearch\Exception\WebException;
+//use Bsr\Webservice\Logger;
 
 mb_http_output('UTF-8');
 
diff --git a/src/BookSearch/Exception/BookNotFoundException.php b/src/BookSearch/Exception/BookNotFoundException.php
index 24de5eb..4306902 100644
--- a/src/BookSearch/Exception/BookNotFoundException.php
+++ b/src/BookSearch/Exception/BookNotFoundException.php
@@ -1,12 +1,12 @@
 <?php
 
-namespace BSR\Search\Exception;
+namespace Bsr\Search\Exception;
 
 /**
  * This exception should be raised when trying to access or
  * manipulate a non-existing book.
  *
- * @package BSR\Lib\Exception
+ * @package Bsr\Lib\Exception
  */
 class BookNotFoundException extends WebException {
     public function __construct($code) {
diff --git a/src/BookSearch/Exception/WebException.php b/src/BookSearch/Exception/WebException.php
index 059a025..2611078 100644
--- a/src/BookSearch/Exception/WebException.php
+++ b/src/BookSearch/Exception/WebException.php
@@ -1,6 +1,6 @@
 <?php
 
-namespace BSR\BookSearch\Exception;
+namespace Bsr\BookSearch\Exception;
 
 class WebException extends \Exception
 {