diff --git a/.pre-commit-config.yaml b/.pre-commit-config.yaml
index 1241da7..8762a8d 100644
--- a/.pre-commit-config.yaml
+++ b/.pre-commit-config.yaml
@@ -22,6 +22,11 @@ repos:
             '--fail-on-change',
         ]
 
+-   repo: https://github.com/PyCQA/isort
+    rev: 5.12.0
+    hooks:
+    -   id: isort
+
 ## Seems to be conflicting with one of the previous pre-commits (e.g. on the number of empty
 ## lines after a class docstring)
 #-   repo: https://github.com/PyCQA/pydocstyle
diff --git a/examples/pw_base.py b/examples/pw_base.py
index fe08cb9..8a87912 100644
--- a/examples/pw_base.py
+++ b/examples/pw_base.py
@@ -4,9 +4,8 @@
 import typing as ty
 import warnings
 
-from qe_tools import CONSTANTS
-
 from aiida import load_profile, orm, plugins
+from qe_tools import CONSTANTS
 
 from aiida_submission_controller import BaseSubmissionController