diff --git a/.github/workflows/pythonpackage.yml b/.github/workflows/pythonpackage.yml
index 6470877..7e76589 100644
--- a/.github/workflows/pythonpackage.yml
+++ b/.github/workflows/pythonpackage.yml
@@ -24,11 +24,10 @@ jobs:
     - name: Install dependencies
       run: |
         python -m pip install --upgrade pip
-        pip install poetry
-        poetry install
+        pip install -r requirements.txt
     - name: Lint with flake8
       run: |
-        make flake8
+        make flake8-in-ci
     - name: Django test
       run: |
-        make test
+        make test-in-ci
diff --git a/Makefile b/Makefile
index 8ce9008..a785a18 100644
--- a/Makefile
+++ b/Makefile
@@ -29,10 +29,14 @@ install:
 	poetry install
 test:
 	poetry run python manage.py test
+test-in-ci:
+	python manage.py test
 shell:
 	poetry run python manage.py shell
 flake8:
 	poetry run flake8
+flake8-in-ci:
+	flake8
 docs-serve:
 	poetry run mkdocs serve
 docs-build: