diff --git a/centml/sdk/config.py b/centml/sdk/config.py
index 006b93e..ffc07cd 100644
--- a/centml/sdk/config.py
+++ b/centml/sdk/config.py
@@ -8,14 +8,16 @@ class Config(BaseSettings):
     # It is possible to override the default values by setting the environment variables
     model_config = SettingsConfigDict(env_file=Path('.env'))
 
-    CENTML_WEB_URL: str = "https://app.centml.com/"
-    CENTML_CONFIG_PATH: str = os.path.expanduser("~/.centml")
-    CENTML_CRED_FILE: str = "credentials.json"
-    CENTML_CRED_FILE_PATH: str = CENTML_CONFIG_PATH + "/" + CENTML_CRED_FILE
+    CENTML_WEB_URL: str = os.getenv("CENTML_WEB_URL", default="https://app.centml.com/")
+    CENTML_CONFIG_PATH: str = os.getenv("CENTML_CONFIG_PATH", default=os.path.expanduser("~/.centml"))
+    CENTML_CRED_FILE: str = os.getenv("CENTML_CRED_FILE", default="credentials.json")
+    CENTML_CRED_FILE_PATH: str = os.path.join(CENTML_CONFIG_PATH, CENTML_CRED_FILE)
 
-    CENTML_PLATFORM_API_URL: str = "https://api.centml.com"
+    CENTML_PLATFORM_API_URL: str = os.getenv("CENTML_PLATFORM_API_URL", default="https://api.centml.com")
 
-    CENTML_FIREBASE_API_KEY: str = "AIzaSyChPXy41cIAxS_Nd8oaYKyP_oKkIucobtY"
+    CENTML_FIREBASE_API_KEY: str = os.getenv(
+        "CENTML_FIREBASE_API_KEY", default="AIzaSyChPXy41cIAxS_Nd8oaYKyP_oKkIucobtY"
+    )
 
 
 settings = Config()