diff --git a/setup.py b/setup.py
index 015feef..97f53d9 100644
--- a/setup.py
+++ b/setup.py
@@ -41,7 +41,7 @@ def readme():
         'requests>=2.25.1',
         'lxml>=4.6.2',
         'Jinja2>=2.11.3',
-        'spid_compliant_certificates>=0.4.1'
+        'spid_compliant_certificates>=0.5.3'
         # 'sslyze>=4.0.4', # todo
       ],
     )
diff --git a/src/spid_sp_test/__init__.py b/src/spid_sp_test/__init__.py
index e41de31..7c4ea36 100644
--- a/src/spid_sp_test/__init__.py
+++ b/src/spid_sp_test/__init__.py
@@ -6,7 +6,7 @@
 
 
 BASE_DIR = Path(__file__).resolve().parent
-__version__ = "1.2.8"
+__version__ = "1.2.9"
 __name__ = "spid_sp_test"
 logger = logging.getLogger(__name__)
 
diff --git a/src/spid_sp_test/constants.py b/src/spid_sp_test/constants.py
index e54dd52..ba684a7 100644
--- a/src/spid_sp_test/constants.py
+++ b/src/spid_sp_test/constants.py
@@ -159,7 +159,7 @@
 DESIRED_CERTIFICATE_LENGHT = 3072  # type: int
 
 NODE_NAME = "urn:oasis:names:tc:SAML:2.0:assertion:Assertion"
-EMAIL_REGEXP = r"^(\w|\.|\_|\-)+[@](\w|\_|\-|\.)+[.]\w{2,6}$"
+EMAIL_REGEXP = r"^(\w|\.|\_|\-)+[@](\w|\_|\-|\.)+[.]\w{2,8}$"
 
 
 ISO3166_CODES = [