diff --git a/.github/workflows/tests.yml b/.github/workflows/tests.yml
index 51af4a3..0e1563e 100644
--- a/.github/workflows/tests.yml
+++ b/.github/workflows/tests.yml
@@ -30,7 +30,7 @@ jobs:
       run: python -m black --check pdfplumber tests
 
     - name: Validate against isort
-      run: python -m isort --check-only pdfplumber tests
+      run: python -m isort --profile black --check-only pdfplumber tests
 
     - name: Validate against flake8
       run: python -m flake8 pdfplumber tests