diff --git a/api/config.py b/api/config.py
index 3e68c44..0bff4a9 100644
--- a/api/config.py
+++ b/api/config.py
@@ -23,7 +23,6 @@ class ConfigClass(object):
     SQLALCHEMY_TRACK_MODIFICATIONS = False  # Avoids SQLAlchemy warning
 
     # openapi/Swagger config
-    SPEC_FORMAT = 'yaml'
     LOCAL_SPEC_PATH = 'docs/openapi.json'
     SERVERS = [
         {