diff --git a/core/controllers/ApplicationVersionController.py b/core/controllers/ApplicationVersionController.py
index 1664722..046a6fb 100644
--- a/core/controllers/ApplicationVersionController.py
+++ b/core/controllers/ApplicationVersionController.py
@@ -8,7 +8,6 @@ from core.services.WebServiceApiService import WebServiceApiService
 from io import BytesIO
 from typing import Optional
 import hashlib
-import requests
 import shutil
 import tarfile
 
@@ -61,6 +60,8 @@ class ApplicationVersionController:
     @staticmethod
     def __install(application_version: ApplicationVersion, application_version_observer: Optional[ApplicationVersionObserver] = None, proxies: Optional[dict] = None):
 
+        import requests
+
         if application_version_observer is not None:
             application_version_observer.notify('downloading', application_version)
 
diff --git a/core/services/WebServiceApiService.py b/core/services/WebServiceApiService.py
index fb4aad4..2dfd75c 100644
--- a/core/services/WebServiceApiService.py
+++ b/core/services/WebServiceApiService.py
@@ -11,7 +11,6 @@ from core.models.session.ApplicationVersion import ApplicationVersion
 from core.models.session.ProxyConfiguration import ProxyConfiguration
 from typing import Optional
 import re
-import requests
 
 
 class WebServiceApiService:
@@ -22,7 +21,7 @@ class WebServiceApiService:
         response = WebServiceApiService.__get('/platforms/linux-x86_64/applications', None, proxies)
         applications = []
 
-        if response.status_code == requests.codes.ok:
+        if response.status_code == 200:
             for application in response.json()['data']:
                 applications.append(Application(application['code'], application['name'], application['id']))
 
@@ -34,7 +33,7 @@ class WebServiceApiService:
         response = WebServiceApiService.__get(f'/platforms/linux-x86_64/applications/{code}/application-versions', None, proxies)
         application_versions = []
 
-        if response.status_code == requests.codes.ok:
+        if response.status_code == 200:
             for application_version in response.json()['data']:
                 application_versions.append(ApplicationVersion(code, application_version['version_number'], application_version['format_revision'], application_version['id'], application_version['download_path'], application_version['released_at'], application_version['file_hash']))
 
@@ -46,7 +45,7 @@ class WebServiceApiService:
         response = WebServiceApiService.__get('/platforms/linux-x86_64/appimage/client-versions', None, proxies)
         client_versions = []
 
-        if response.status_code == requests.codes.ok:
+        if response.status_code == 200:
             for client_version in response.json()['data']:
                 client_versions.append(ClientVersion(client_version['version_number'], client_version['released_at'], client_version['id'], client_version['download_path']))
 
@@ -58,7 +57,7 @@ class WebServiceApiService:
         response = WebServiceApiService.__get('/operators', None, proxies)
         operators = []
 
-        if response.status_code == requests.codes.ok:
+        if response.status_code == 200:
             for operator in response.json()['data']:
                 operators.append(Operator(operator['id'], operator['name'], operator['public_key'], operator['nostr_public_key'], operator['nostr_profile_reference'], operator['nostr_attestation']['event_reference']))
 
@@ -70,7 +69,7 @@ class WebServiceApiService:
         response = WebServiceApiService.__get('/locations', None, proxies)
         locations = []
 
-        if response.status_code == requests.codes.ok:
+        if response.status_code == 200:
             for location in response.json()['data']:
                 locations.append(Location(location['country']['code'], location['code'], location['id'], location['country']['name'], location['name'], location['time_zone']['code'], location['operator_id'], location['provider']['name'], location['is_proxy_capable'], location['is_wireguard_capable']))
 
@@ -82,7 +81,7 @@ class WebServiceApiService:
         response = WebServiceApiService.__get('/subscription-plans', None, proxies)
         subscription_plans = []
 
-        if response.status_code == requests.codes.ok:
+        if response.status_code == 200:
             for subscription_plan in response.json()['data']:
                 subscription_plans.append(SubscriptionPlan(subscription_plan['id'], subscription_plan['code'], subscription_plan['wireguard_session_limit'], subscription_plan['duration'], subscription_plan['price'], subscription_plan['features_proxy'], subscription_plan['features_wireguard']))
 
@@ -96,7 +95,7 @@ class WebServiceApiService:
             'location_id': location_id
         }, proxies)
 
-        if response.status_code == requests.codes.created:
+        if response.status_code == 201:
             return Subscription(response.headers['X-Billing-Code'])
 
         else:
@@ -111,7 +110,7 @@ class WebServiceApiService:
 
         response = WebServiceApiService.__get('/subscriptions/current', billing_code, proxies)
 
-        if response.status_code == requests.codes.ok:
+        if response.status_code == 200:
 
             subscription = response.json()['data']
             return Subscription(billing_code, Subscription.from_iso_format(subscription['expires_at']))
@@ -124,7 +123,7 @@ class WebServiceApiService:
 
         response = WebServiceApiService.__get('/invoices/current', billing_code, proxies)
 
-        if response.status_code == requests.codes.ok:
+        if response.status_code == 200:
 
             response_data = response.json()['data']
 
@@ -148,7 +147,7 @@ class WebServiceApiService:
 
         response = WebServiceApiService.__get('/proxy-configurations/current', billing_code, proxies)
 
-        if response.status_code == requests.codes.ok:
+        if response.status_code == 200:
 
             proxy_configuration = response.json()['data']
             return ProxyConfiguration(proxy_configuration['ip_address'], proxy_configuration['port'], proxy_configuration['username'], proxy_configuration['password'], proxy_configuration['location']['time_zone']['code'])
@@ -163,7 +162,7 @@ class WebServiceApiService:
             'public_key': public_key,
         }, proxies)
 
-        if response.status_code == requests.codes.created:
+        if response.status_code == 201:
             return response.text
         else:
             return None
@@ -171,6 +170,8 @@ class WebServiceApiService:
     @staticmethod
     def __get(path, billing_code: Optional[str] = None, proxies: Optional[dict] = None):
 
+        import requests
+
         if billing_code is not None:
             headers = {'X-Billing-Code': billing_code}
         else:
@@ -181,6 +182,8 @@ class WebServiceApiService:
     @staticmethod
     def __post(path, billing_code: Optional[str] = None, body: Optional[dict] = None, proxies: Optional[dict] = None):
 
+        import requests
+
         if billing_code is not None:
             headers = {'X-Billing-Code': billing_code}
         else: