diff --git a/.github/workflows/actions/prepare/action.yml b/.github/workflows/actions/prepare/action.yml
index cc3133d8..46586e15 100644
--- a/.github/workflows/actions/prepare/action.yml
+++ b/.github/workflows/actions/prepare/action.yml
@@ -14,5 +14,5 @@ runs:
         cache: 'poetry'
 
     - name: Install dependencies
-      run: poetry install --only main,dev --no-interaction --no-ansi
+      run: poetry install --no-interaction --no-ansi --no-root --sync
       shell: bash
diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 92977100..2a2171a4 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -59,7 +59,7 @@ jobs:
           cache: 'poetry'
 
       - name: Install dependencies
-        run: poetry install --no-interaction --no-ansi --sync
+        run: poetry install --no-interaction --no-ansi --no-root --sync
 
       - name: Run unittests
         run: python tests/testing.py