diff --git a/Dockerfile b/Dockerfile
index 4272d0371923a68b6275f88b0469c23ed3f5b69c..7662e29949a9864afcf4c82e7441f554dab63d27 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -3,7 +3,6 @@ FROM registry.hub.docker.com/library/python:3.9-slim-buster
 RUN apt-get update && \
     DEBIAN_FRONTEND=noninteractive apt-get install -y --no-install-recommends \
         build-essential \
-        git \
         libldap2-dev \
         libsasl2-dev \
     && \
diff --git a/app.py b/app.py
index 2b0182925fe3d3c75dc0ca334bd9cf037f1b085d..95186987a7d02ffeeebf83fd75fc3426a0882b03 100644
--- a/app.py
+++ b/app.py
@@ -1,11 +1,15 @@
 """LDAP authentication webserver to use with Nginx' auth_request."""
 # pylint: disable=import-error
 
-from flask import Flask
-from flask_simpleldap import LDAP
+import os
+from flask import Flask, token
+from flask_ldap_auth import login_required
 
 app = Flask(__name__)
-ldap = LDAP(app)
+app.config["SECRET_KEY"] = os.getenv("SECRET_KEY", os.urandom(16))
+app.config["LDAP_AUTH_SERVER"] = os.getenv("LDAP_AUTH_SERVER", "ldapi:///")
+app.config["LDAP_TOP_DN"] = os.getenv("LDAP_TOP_DN")
+app.register_blueprint(token, url_prefix="/auth")
 
 
 @app.route("/ping")
@@ -20,7 +24,7 @@ def index():
 
 
 @app.route("/login")
-@ldap.basic_auth_required
+@login_required
 def login():
     return "OK"
 
diff --git a/requirements.txt b/requirements.txt
index 4f04f73b0856d3ab2ed5caeb4804ecba2f9dbae2..81308f4248e813447ee7eaa9bc2a88758d184ee6 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,5 +1,4 @@
 flask
-#flask-simpleldap
-git+https://github.com/adarnimrod/flask-simpleldap.git@ldapi-support#egg=flask-simpleldap
+flask-ldap-auth
 gunicorn
 python-ldap