diff --git a/Dockerfile b/Dockerfile
index 5ad7787..a1fb4b0 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,17 +1,14 @@
-FROM python:3-alpine
+FROM alpine:latest
 
 WORKDIR /usr/src/app
 ADD . /usr/src/app
 
 ENV DATAROOTDIR /usr/share
 ENV SYSCONFDIR /etc
-ENV AD_LOGIN administrator
-ENV PASSWORD password
 
-RUN apk add --no-cache libldap && \
-    apk add --no-cache --virtual build-dependencies build-base yaml-dev openldap-dev && \
-    python setup.py install && \
-    apk del build-dependencies && \
+RUN apk add --no-cache py3-pip py3-pyldap && \
+    python3 setup.py install && \
+    \
     cp -v conf/* /etc/ldapcherry && \
     adduser -S ldapcherry && \
     rm -rf /usr/src/app
diff --git a/conf/roles.yml b/conf/roles.yml
index 61970e5..77358cc 100644
--- a/conf/roles.yml
+++ b/conf/roles.yml
@@ -25,12 +25,12 @@
 #        ad:
 #            - Administrators
 
-developpers:
+developers:
     display_name: Developpers
     description: Developpers of the system
     backends_groups:
         ldap:
-            - cn=developpers,ou=Group,dc=example,dc=org
+            - cn=developers,ou=Group,dc=example,dc=org
             - cn=users,ou=Group,dc=example,dc=org
 
 users: