diff --git a/.github/workflows/formatting.yml b/.github/workflows/formatting.yml
index 068dee5..1a4c86e 100644
--- a/.github/workflows/formatting.yml
+++ b/.github/workflows/formatting.yml
@@ -27,11 +27,13 @@ jobs:
     - name: Install dependencies
       run: |
         python -m pip install --upgrade pip
-        python -m pip install black
+        python -m pip install black isort
         if [ -f requirements.txt ]; then python -m pip install -r requirements.txt; fi
     - name: black format
       run: |
         black --diff --check .
+    - name: Run isort formatter
+      uses: isort/isort-action@master
 
   python-bytecode:
     runs-on: ubuntu-20.04
@@ -48,4 +50,4 @@ jobs:
           echo -e "${FILES}"
           echo -e "##############"
           exit 1
-        fi
\ No newline at end of file
+        fi