diff --git a/README.md b/README.md
index 3fe9ef9..1bc337c 100644
--- a/README.md
+++ b/README.md
@@ -44,6 +44,10 @@ redsystest = dict( # Clave para tests
 ```
 
 ## Changelog
+### sermepa 1.0.4-dev
+
+- When sermepa revice an unexpected param in `decodeSignedData` method not will raise `SignatureError`
+
 ### sermepa 1.0.2 (2020-09-16)
 
 - Accept `Ds_ProcessedPayMethod` parameter set
diff --git a/setup.py b/setup.py
index 209fca4..fee9c58 100755
--- a/setup.py
+++ b/setup.py
@@ -12,7 +12,7 @@
 
 setup(
     name='sermepa',
-    version='1.0.3',
+    version='1.0.4-dev',
     description = __doc__.strip(),
     author='GISCE Enginyeria',
     author_email='devel@gisce.net',