diff --git a/HISTORY.md b/HISTORY.md
index d38c0c7..4a33eea 100644
--- a/HISTORY.md
+++ b/HISTORY.md
@@ -1,6 +1,11 @@
 History
 =======
 
+0.3.8 (2017-08-25)
+-------------------
+
+* 
+
 0.3.4 (2017-08-21)
 -------------------
 
diff --git a/pydatajson/__init__.py b/pydatajson/__init__.py
index 3456e63..e8853e6 100644
--- a/pydatajson/__init__.py
+++ b/pydatajson/__init__.py
@@ -10,4 +10,4 @@
 
 __author__ = """Datos Argentina"""
 __email__ = 'datos@modernizacion.gob.ar'
-__version__ = '0.3.7'
+__version__ = '0.3.8'
diff --git a/pydatajson/helpers.py b/pydatajson/helpers.py
index 62e4abc..d463a89 100644
--- a/pydatajson/helpers.py
+++ b/pydatajson/helpers.py
@@ -16,8 +16,10 @@
 ABSOLUTE_PROJECT_DIR = os.path.dirname(os.path.abspath(__file__))
 ABSOLUTE_SCHEMA_DIR = os.path.join(ABSOLUTE_PROJECT_DIR, "schemas")
 STOP_WORDS = [
-    "el", "los", "la", "las",
-    "de", "del", "en", "y", "a"
+    "el", "la", "los", "las",
+    "de", "del",
+    "y", "a",
+    "un", "una", "en"
 ]
 
 
diff --git a/setup.py b/setup.py
index c9a0dda..4ff7ac7 100644
--- a/setup.py
+++ b/setup.py
@@ -18,7 +18,7 @@
 
 setup(
     name='pydatajson',
-    version='0.3.7',
+    version='0.3.8',
     description="Paquete en python con herramientas para generar y validar metadatos de catálogos de datos en formato data.json.",
     long_description=readme + '\n\n' + history,
     author="Datos Argentina",