diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 8f62a8cc..ad421a72 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -27,7 +27,7 @@ jobs:
       - name: Execute tests
         run: |
             pip install -U pip poetry tox
-            poetry install -E for_tests
+            poetry install
 
             export TOXENV=${{ matrix.toxenv }}
             export PYTHON=${{ matrix.python-version }}