diff --git a/src/vigenere_api/api/utils/__init__.py b/src/vigenere_api/api/helpers/__init__.py
similarity index 100%
rename from src/vigenere_api/api/utils/__init__.py
rename to src/vigenere_api/api/helpers/__init__.py
diff --git a/src/vigenere_api/api/utils/controller.py b/src/vigenere_api/api/helpers/controller.py
similarity index 100%
rename from src/vigenere_api/api/utils/controller.py
rename to src/vigenere_api/api/helpers/controller.py
diff --git a/src/vigenere_api/api/utils/errors.py b/src/vigenere_api/api/helpers/errors.py
similarity index 100%
rename from src/vigenere_api/api/utils/errors.py
rename to src/vigenere_api/api/helpers/errors.py
diff --git a/src/vigenere_api/api/utils/open_api_handler.py b/src/vigenere_api/api/helpers/open_api_handler.py
similarity index 100%
rename from src/vigenere_api/api/utils/open_api_handler.py
rename to src/vigenere_api/api/helpers/open_api_handler.py
diff --git a/src/vigenere_api/api/utils/open_api_route_filter.py b/src/vigenere_api/api/helpers/open_api_route_filter.py
similarity index 100%
rename from src/vigenere_api/api/utils/open_api_route_filter.py
rename to src/vigenere_api/api/helpers/open_api_route_filter.py
diff --git a/src/vigenere_api/api/v1/controllers/caesar/caesar.py b/src/vigenere_api/api/v1/controllers/caesar/caesar.py
index 40fffceeaf92690bb679fea82f5c2d2f2019ddbb..18d7c59a05436f87ad44d5bb04e478da6ad9f183 100644
--- a/src/vigenere_api/api/v1/controllers/caesar/caesar.py
+++ b/src/vigenere_api/api/v1/controllers/caesar/caesar.py
@@ -19,7 +19,7 @@
 from blacksheep import FromJSON, Response
 from blacksheep.server.controllers import post
 
-from vigenere_api.api.utils import Controller
+from vigenere_api.api.helpers import Controller
 from vigenere_api.api.v1.openapi_docs import docs
 from vigenere_api.models import CaesarData
 
diff --git a/src/vigenere_api/api/v1/openapi_docs.py b/src/vigenere_api/api/v1/openapi_docs.py
index c937837269bc9929d50ab6bb6fa98bd60b127f97..4dbf5e020b9c5e8e6f281536348b7e4b5adbebd1 100644
--- a/src/vigenere_api/api/v1/openapi_docs.py
+++ b/src/vigenere_api/api/v1/openapi_docs.py
@@ -16,7 +16,7 @@
 
 """Common OpenAPI docs."""
 
-from vigenere_api.api.utils import VigenereAPIOpenAPIHandler
+from vigenere_api.api.helpers import VigenereAPIOpenAPIHandler
 from vigenere_api.version import Version
 
 
diff --git a/src/vigenere_api/models/caesar.py b/src/vigenere_api/models/caesar.py
index e56f246c2c962276860dcd613921997bd6949621..330b04a81dd95a078919856f789bcf6d9d9be79b 100644
--- a/src/vigenere_api/models/caesar.py
+++ b/src/vigenere_api/models/caesar.py
@@ -34,7 +34,7 @@ from .errors import (
     KeyTypeError,
     TooLongKeyError,
 )
-from .helper import move_char
+from .helpers import move_char
 
 
 Key = Union[StrictInt, StrictStr]
diff --git a/src/vigenere_api/models/helper/__init__.py b/src/vigenere_api/models/helpers/__init__.py
similarity index 100%
rename from src/vigenere_api/models/helper/__init__.py
rename to src/vigenere_api/models/helpers/__init__.py
diff --git a/src/vigenere_api/models/helper/errors.py b/src/vigenere_api/models/helpers/errors.py
similarity index 100%
rename from src/vigenere_api/models/helper/errors.py
rename to src/vigenere_api/models/helpers/errors.py
diff --git a/src/vigenere_api/models/helper/helper.py b/src/vigenere_api/models/helpers/helper.py
similarity index 100%
rename from src/vigenere_api/models/helper/helper.py
rename to src/vigenere_api/models/helpers/helper.py