diff --git a/.pre-commit-config.yaml b/.pre-commit-config.yaml
index a14705c76..995a5283a 100644
--- a/.pre-commit-config.yaml
+++ b/.pre-commit-config.yaml
@@ -6,3 +6,8 @@ repos:
     hooks:
     - id: black
       args: ['--target-version', 'py37', '--skip-string-normalization', '--line-length', '110']
+-   repo: https://github.com/PyCQA/isort
+    rev: 5.7.0
+    hooks:
+    - id: isort
+      args: ['--force-single-line-imports', '--line-length', '110']
diff --git a/Jenkinsfile b/Jenkinsfile
index 30ef7882d..ec6e83331 100644
--- a/Jenkinsfile
+++ b/Jenkinsfile
@@ -9,11 +9,11 @@ pipeline {
                 stage('Unit tests django 1.11') {
                     agent any
                     steps {
-                        sh 'tox -rv -e py3-django111-black-pylint-coverage'
+                        sh 'tox -rv -e py3-django111-codestyle-pylint-coverage'
                     }
                     post {
                         always {
-                            stash includes:'junit-py3-django111-black-pylint-coverage.xml', name: 'django111'
+                            stash includes:'junit-py3-django111-codestyle-pylint-coverage.xml', name: 'django111'
                             script {
                                 utils = new Utils()
                                 utils.publish_coverage('coverage.xml')
diff --git a/README b/README
index edce305cd..89b82405e 100644
--- a/README
+++ b/README
@@ -39,6 +39,10 @@ black is used to format the code, using thoses parameters:
 
     black --target-version py37 --skip-string-normalization --line-length 110
 
+isort is used to format the imports, using those parameters:
+
+    isort --force-single-line-imports --line-length 110
+
 There is .pre-commit-config.yaml to use pre-commit to automatically run black
 before commits. (execute `pre-commit install` to install the git hook.)
 
diff --git a/tox.ini b/tox.ini
index 6d2050a66..54e1b1fd4 100644
--- a/tox.ini
+++ b/tox.ini
@@ -1,6 +1,6 @@
 [tox]
 toxworkdir = {env:TMPDIR:/tmp}/tox-{env:USER}/wcs/{env:BRANCH_NAME:main}/{env:EXECUTOR_NUMBER:}
-envlist = py3-django111-black-pylint-coverage, py3-django22
+envlist = py3-django111-codestyle-pylint-coverage, py3-django22
 
 [testenv]
 sitepackages = true
@@ -46,4 +46,4 @@ deps =
 commands =
     py.test -v {env:COVERAGE:} --junitxml=junit-{envname}.xml {posargs:tests/}
     pylint: ./pylint.sh wcs/
-    black: pre-commit run black --all-files --show-diff-on-failure
+    codestyle: pre-commit run --all-files --show-diff-on-failure