diff --git a/runner_manager/auth.py b/runner_manager/auth.py
index eceb6622..083b0279 100644
--- a/runner_manager/auth.py
+++ b/runner_manager/auth.py
@@ -1,12 +1,15 @@
-
+from fastapi import Depends, HTTPException, Security, status
 from fastapi.middleware.trustedhost import TrustedHostMiddleware
+from fastapi.security import APIKeyHeader, APIKeyQuery
 from starlette.types import Receive, Scope, Send
 
+from runner_manager.dependencies import get_settings
+from runner_manager.models.settings import Settings
+
 
 class TrustedHostHealthRoutes(TrustedHostMiddleware):
     """A healthcheck endpoint that answers to GET requests on /_health"""
 
-
     async def __call__(self, scope: Scope, receive: Receive, send: Send) -> None:
         """If the request is made on the path _health then execute the check on hosts"""
         if scope["path"] == "/_health/":
@@ -14,3 +17,26 @@ async def __call__(self, scope: Scope, receive: Receive, send: Send) -> None:
             await super().__call__(scope, receive, send)
         else:
             await self.app(scope, receive, send)
+
+
+api_key_query = APIKeyQuery(name="api-key", auto_error=False)
+api_key_header = APIKeyHeader(name="x-api-key", auto_error=False)
+settings = get_settings()
+
+
+def get_api_key(
+    api_key_query: str = Security(api_key_query),
+    api_key_header: str = Security(api_key_header),
+    settings: Settings = Depends(get_settings),
+) -> str:
+    """Get the API key from either the query parameter or the header"""
+    if not settings.api_key:
+        return ""
+    if api_key_query in [settings.api_key.get_secret_value()]:
+        return api_key_query
+    if api_key_header in [settings.api_key.get_secret_value()]:
+        return api_key_header
+    raise HTTPException(
+        status_code=status.HTTP_401_UNAUTHORIZED,
+        detail="Invalid API Key",
+    )
diff --git a/runner_manager/main.py b/runner_manager/main.py
index 8f9c512b..419126f2 100644
--- a/runner_manager/main.py
+++ b/runner_manager/main.py
@@ -1,46 +1,20 @@
 import logging
 
-from fastapi import Depends, FastAPI, HTTPException, Security, status
-from fastapi.security import APIKeyHeader, APIKeyQuery
-from runner_manager.auth import TrustedHostHealthRoutes
+from fastapi import FastAPI, Security
 
+from runner_manager.auth import TrustedHostHealthRoutes, get_api_key
 from runner_manager.dependencies import get_queue, get_settings
 from runner_manager.jobs.startup import startup
-from runner_manager.models.settings import Settings
-from runner_manager.routers import webhook, _health
+from runner_manager.routers import _health, webhook
 
 log = logging.getLogger(__name__)
-
 app = FastAPI()
-api_key_query = APIKeyQuery(name="api-key", auto_error=False)
-api_key_header = APIKeyHeader(name="x-api-key", auto_error=False)
 settings = get_settings()
 
 
-def get_api_key(
-    api_key_query: str = Security(api_key_query),
-    api_key_header: str = Security(api_key_header),
-    settings: Settings = Depends(get_settings),
-) -> str:
-    """Get the API key from either the query parameter or the header"""
-    if not settings.api_key:
-        return ""
-    if api_key_query in [settings.api_key.get_secret_value()]:
-        return api_key_query
-    if api_key_header in [settings.api_key.get_secret_value()]:
-        return api_key_header
-    raise HTTPException(
-        status_code=status.HTTP_401_UNAUTHORIZED,
-        detail="Invalid API Key",
-    )
-
-
 app.include_router(webhook.router)
 app.include_router(_health.router)
-app.add_middleware(
-    TrustedHostHealthRoutes,
-    allowed_hosts=settings.allowed_hosts
-)
+app.add_middleware(TrustedHostHealthRoutes, allowed_hosts=settings.allowed_hosts)
 
 
 @app.on_event("startup")
@@ -51,8 +25,6 @@ def startup_event():
     log.info(f"Startup job is {status}")
 
 
-
-
 @app.get("/public")
 def public():
     """A public endpoint that does not require any authentication."""
diff --git a/runner_manager/routers/_health.py b/runner_manager/routers/_health.py
index 52a50bfb..4add2c54 100644
--- a/runner_manager/routers/_health.py
+++ b/runner_manager/routers/_health.py
@@ -1,4 +1,3 @@
-
 from fastapi import APIRouter, Response
 
 router = APIRouter(prefix="/_health")
diff --git a/tests/api/tests_auth.py b/tests/api/tests_auth.py
index b68d19ee..d472896a 100644
--- a/tests/api/tests_auth.py
+++ b/tests/api/tests_auth.py
@@ -4,21 +4,24 @@
 from runner_manager.models.settings import Settings
 
 
+@lru_cache
+def settings_api_key():
+    return Settings(api_key="secret")
+
+
 def test_public_endpoint(client):
     response = client.get("/public")
 
     assert response.status_code == 200
 
 
-def test_private_endpoint_without_api_key(client):
+def test_private_endpoint_without_api_key(fastapp, client):
     response = client.get("/private")
-    # for now we are not using api key
-    assert response.status_code == 200
-
-
-@lru_cache
-def settings_api_key():
-    return Settings(api_key="secret")
+    settings_api_key.cache_clear()
+    fastapp.dependency_overrides = {}
+    fastapp.dependency_overrides[get_settings] = settings_api_key
+    response = client.get("/private")
+    assert response.status_code == 401
 
 
 def test_private_endpoint_with_valid_api_key(fastapp, client):