diff --git a/README.md b/README.md
index c30cf689..9e0247f9 100644
--- a/README.md
+++ b/README.md
@@ -468,7 +468,7 @@ Example:
 
 ```python
 customer = {
-    "sourec_id": "alice.morgan",
+    "source_id": "alice.morgan",
     "name": "Alice Morgan",
     "email": "alice@morgan.com",
     "description": "",
@@ -636,7 +636,9 @@ new_price = utils.calculate_price(base_price, voucher, unit_price)
 
 ### Changelog
 
+- **2016-06-08** - `1.0.0` - Release version
 - **2016-05-31** - `0.1.0` - First version:
   - Authentication
   - Voucher informations: *get*, *usage*
   - Voucher operations: *use*
+  - Utils
diff --git a/setup.py b/setup.py
index 5383a014..4b368e1c 100755
--- a/setup.py
+++ b/setup.py
@@ -4,7 +4,7 @@
 
 sys.path.insert(0, os.path.join(os.path.dirname(__file__), 'voucherify'))
 
-__version__ = '0.1.0.dev.1'
+__version__ = '1.0.0'
 __pypi_username__ = 'voucherify'
 __pypi_packagename__ = 'voucherify'
 __github_username__ = 'voucherifyio'
diff --git a/voucherify/client.py b/voucherify/client.py
index 7bb1bf7e..4b9e7c5f 100644
--- a/voucherify/client.py
+++ b/voucherify/client.py
@@ -1,4 +1,3 @@
-import pprint
 import requests
 import json
 
diff --git a/voucherify/utils.py b/voucherify/utils.py
index 552374ea..afe51a9a 100644
--- a/voucherify/utils.py
+++ b/voucherify/utils.py
@@ -1,5 +1,3 @@
-import pprint
-
 def round_money(value):
     if value is None or value < 0:
         raise Exception('Invalid value, amount should be a number and higher than zero.')