diff --git a/mlflow_plugin_proxy_auth/proxy_auth_header_provider.py b/mlflow_plugin_proxy_auth/proxy_auth_header_provider.py
index 4f983c4..dd8e453 100644
--- a/mlflow_plugin_proxy_auth/proxy_auth_header_provider.py
+++ b/mlflow_plugin_proxy_auth/proxy_auth_header_provider.py
@@ -9,8 +9,8 @@ from requests.auth import AuthBase
 
 class ProxyAuthProvider(RequestAuthProvider):
     def __init__(self):
-        self.username = os.getenv("MLFLOW_TRACKING_USERNAME")
-        self.password = os.getenv("MLFLOW_TRACKING_PASSWORD")
+        self.username = os.getenv("MLFLOW_PROXY_USERNAME")
+        self.password = os.getenv("MLFLOW_PROXY_PASSWORD")
 
     def get_name(self):
         return "proxy_auth_provider"
diff --git a/setup.py b/setup.py
index 9334080..56122bf 100644
--- a/setup.py
+++ b/setup.py
@@ -2,7 +2,7 @@ from setuptools import find_packages, setup
 
 setup(
     name="mlflow-plugin-proxy-auth",
-    version="0.0.3",
+    version="0.0.4",
     packages=find_packages(),
     install_requires=["mlflow"],
     entry_points={