diff --git a/.gitignore b/.gitignore
index be74bb0a..6e45e56b 100644
--- a/.gitignore
+++ b/.gitignore
@@ -3,4 +3,5 @@ upgrade.log
 *~
 vendor
 /src/local.*
-tests-report.xml
+tests-report*.xml
+.phplint-cache
diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index 57189838..947910d5 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -1,9 +1,9 @@
 stages:
   - tests
 
-tests:
+tests:bullseye:
   image:
-    name: brenard/ldapsaisie:dev
+    name: brenard/ldapsaisie:bullseye
     entrypoint: [""]
 
   stage: tests
@@ -13,10 +13,60 @@ tests:
   script:
     - composer install
     - service slapd start
-    - ./vendor/bin/phpstan analyse --no-interaction --configuration=.phpstan/config.neon --error-format=junit > tests-report.xml
+    - ./vendor/bin/phpstan analyse --no-interaction --configuration=.phpstan/config.neon --error-format=junit > tests-report-bullseye.xml
   artifacts:
     when: always
     paths:
-      - tests-report.xml
+      - tests-report-bullseye.xml
     reports:
-      junit: tests-report.xml
+      junit: tests-report-bullseye.xml
+
+tests:buster:
+  image:
+    name: brenard/ldapsaisie:buster
+    entrypoint: [""]
+
+  stage: tests
+  rules:
+    - changes:
+      - src/*
+  script:
+    - composer install
+    - service slapd start
+    - ./vendor/bin/phpstan analyse --no-interaction --configuration=.phpstan/config.neon --error-format=junit > tests-report-buster.xml
+  artifacts:
+    when: always
+    paths:
+      - tests-report-buster.xml
+    reports:
+      junit: tests-report-buster.xml
+
+tests:stretch:
+  image:
+    name: brenard/ldapsaisie:stretch
+    entrypoint: [""]
+  stage: tests
+  rules:
+    - changes:
+      - src/*
+  script:
+    - cd /tmp/
+    - composer require overtrue/phplint --dev
+    - cd -
+    - rm -f .phplint-cache
+    - /tmp/vendor/bin/phplint src
+
+tests:jessie:
+  image:
+    name: brenard/ldapsaisie:jessie
+    entrypoint: [""]
+  stage: tests
+  rules:
+    - changes:
+      - src/*
+  script:
+    - cd /tmp/
+    - composer require overtrue/phplint --dev
+    - cd -
+    - rm -f .phplint-cache
+    - /tmp/vendor/bin/phplint src
diff --git a/.phpstan/init.php b/.phpstan/init.php
index 73640957..ab435739 100644
--- a/.phpstan/init.php
+++ b/.phpstan/init.php
@@ -1,6 +1,7 @@
 <?php
 
 require 'Net/LDAP2.php';
+require 'Net/FTP.php';
 require 'Console/Table.php';
 require 'Zxcvbn/autoload.php';
 require '/usr/share/php/phpseclib/autoload.php';