diff --git a/bothub/api/v2/routers.py b/bothub/api/v2/routers.py
index 3c53b33fe..bf1b756e3 100644
--- a/bothub/api/v2/routers.py
+++ b/bothub/api/v2/routers.py
@@ -18,13 +18,13 @@
 from .nlp.views import RepositoryAuthorizationEvaluateViewSet
 from .nlp.views import RepositoryAuthorizationInfoViewSet
 from .nlp.views import RepositoryAuthorizationParseViewSet
-from .nlp.views import RepositoryAuthorizationTrainLanguagesViewSet
 from .nlp.views import (
     RepositoryAuthorizationTrainViewSet,
     RepositoryNLPLogsViewSet,
     RepositoryAuthorizationKnowledgeBaseViewSet,
     RepositoryAuthorizationExamplesViewSet,
     RepositoryAuthorizationAutomaticEvaluateViewSet,
+    RepositoryAuthorizationTrainLanguagesViewSet,
 )
 from .nlp.views import RepositoryUpdateInterpretersViewSet
 from .organization.views import (
diff --git a/bothub/authentication/migrations/0009_auto_20210506_1453.py b/bothub/authentication/migrations/0009_auto_20210506_1453.py
index 9c79bd5e1..87bd9fbf6 100644
--- a/bothub/authentication/migrations/0009_auto_20210506_1453.py
+++ b/bothub/authentication/migrations/0009_auto_20210506_1453.py
@@ -5,14 +5,17 @@
 
 class Migration(migrations.Migration):
 
-    dependencies = [
-        ('authentication', '0008_user_language'),
-    ]
+    dependencies = [("authentication", "0008_user_language")]
 
     operations = [
         migrations.AlterField(
-            model_name='user',
-            name='language',
-            field=models.CharField(blank=True, choices=[('en-us', 'English'), ('pt-br', 'Brazilian Portuguese')], max_length=5, null=True),
-        ),
+            model_name="user",
+            name="language",
+            field=models.CharField(
+                blank=True,
+                choices=[("en-us", "English"), ("pt-br", "Brazilian Portuguese")],
+                max_length=5,
+                null=True,
+            ),
+        )
     ]
diff --git a/bothub/common/models.py b/bothub/common/models.py
index 5d9422451..8d36fad19 100644
--- a/bothub/common/models.py
+++ b/bothub/common/models.py
@@ -470,10 +470,7 @@ def request_nlp_analyze(self, user_authorization, data):
 
     def request_nlp_debug_parse(self, user_authorization, data):
         try:  # pragma: no cover
-            payload = {
-                "text": data.get("text"),
-                "language": data.get("language"),
-            }
+            payload = {"text": data.get("text"), "language": data.get("language")}
 
             repository_version = data.get("repository_version")
 
@@ -483,9 +480,7 @@ def request_nlp_debug_parse(self, user_authorization, data):
             r = requests.post(  # pragma: no cover
                 "{}v2/debug_parse/".format(self.nlp_base_url),
                 json=payload,
-                headers={
-                    "Authorization": "Bearer {}".format(user_authorization.uuid)
-                }
+                headers={"Authorization": "Bearer {}".format(user_authorization.uuid)},
             )
 
             return r  # pragma: no cover
@@ -497,9 +492,7 @@ def request_nlp_debug_parse(self, user_authorization, data):
 
     def request_nlp_words_distribution(self, user_authorization, data):
         try:  # pragma: no cover
-            payload = {
-                "language": data.get("language"),
-            }
+            payload = {"language": data.get("language")}
 
             repository_version = data.get("repository_version")
 
@@ -509,9 +502,7 @@ def request_nlp_words_distribution(self, user_authorization, data):
             r = requests.post(  # pragma: no cover
                 "{}v2/words_distribution/".format(self.nlp_base_url),
                 json=payload,
-                headers={
-                    "Authorization": "Bearer {}".format(user_authorization.uuid)
-                },
+                headers={"Authorization": "Bearer {}".format(user_authorization.uuid)},
             )
             return r  # pragma: no cover
 
@@ -533,9 +524,7 @@ def request_nlp_manual_evaluate(self, user_authorization, data):
             r = requests.post(
                 "{}v2/evaluate/".format(self.nlp_base_url),
                 json=payload,
-                headers={
-                    "Authorization": f"Bearer {user_authorization.uuid}"
-                },
+                headers={"Authorization": f"Bearer {user_authorization.uuid}"},
             )
 
             return r  # pragma: no cover
@@ -557,9 +546,7 @@ def request_nlp_automatic_evaluate(self, user_authorization, data):
             r = requests.post(
                 "{}v2/evaluate/".format(self.nlp_base_url),
                 json=payload,
-                headers={
-                    "Authorization": f"Bearer {user_authorization.uuid}"
-                },
+                headers={"Authorization": f"Bearer {user_authorization.uuid}"},
             )
 
             return r  # pragma: no cover