diff --git a/.github/workflows/check.yaml b/.github/workflows/check.yaml
index 24dc9f8..7f49c57 100644
--- a/.github/workflows/check.yaml
+++ b/.github/workflows/check.yaml
@@ -64,5 +64,5 @@ jobs:
         python-version: '3.x'
     - name: Run flake8 Linter
       run: |
-        pip install flake8
+        pip install -e . flake8
         flake8 --count --show-source --statistics src test
diff --git a/setup.cfg b/setup.cfg
index 2b5b9ac..2d76c1e 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -4,5 +4,8 @@ python-tag = py3
 [doc8]
 max-line-length = 99
 
+[flake8]
+extend-exclude = venv
+
 [isort]
 force_single_line = true