diff --git a/CHANGELOG b/CHANGELOG
index 033a62c..0befa73 100644
--- a/CHANGELOG
+++ b/CHANGELOG
@@ -1,3 +1,5 @@
+* Replace banknumber with python-stdnum
+
 Version 0.22 - 2016-09-06
 * Manage None values on fields
 
diff --git a/retrofix/fields.py b/retrofix/fields.py
index aa59152..94bb58d 100644
--- a/retrofix/fields.py
+++ b/retrofix/fields.py
@@ -29,7 +29,8 @@ except ImportError:
 from decimal import Decimal
 import re
 from datetime import datetime
-import banknumber
+
+from stdnum.es.ccc import is_valid
 
 from .formatting import format_string, format_number
 from .exception import RetrofixException
@@ -108,7 +109,7 @@ class Account(Char):
 
     def set_from_file(self, value):
         account = value.strip()
-        if account and not banknumber.check_code('ES', account):
+        if account and not is_valid(account):
             raise RetrofixException('Invalid bank account "%s" in field "%s"'
                 % (value, self._name))
         return super(Account, self).set_from_file(value)
@@ -117,7 +118,7 @@ class Account(Char):
         account = value
         if account:
             account = account.strip()
-        if account and not banknumber.check_code('ES', account):
+        if account and not is_valid(account):
             raise RetrofixException('Invalid bank account "%s" in field "%s"'
                 % (value, self._name))
         return super(Account, self).set(value)
diff --git a/setup.py b/setup.py
index 2c22b69..6bd1c1d 100644
--- a/setup.py
+++ b/setup.py
@@ -56,7 +56,7 @@ setup(name=PACKAGE,
         ],
     license=LICENSE,
     install_requires=[
-        'banknumber >= 1.0',
+        'python-stdnum >= 1.5',
         ],
     extras_require={},
     zip_safe=False,