diff --git a/.github/workflows/quality.yml b/.github/workflows/quality.yml
index 851869a0..c245345f 100644
--- a/.github/workflows/quality.yml
+++ b/.github/workflows/quality.yml
@@ -50,7 +50,7 @@ jobs:
         uses: actions/checkout@v3
 
       - name: Install poetry
-        run: pipx install poetry
+        run: pipx install "poetry<2.0.0"
 
       - name: Poetry check
         run: poetry check
@@ -64,7 +64,7 @@ jobs:
         uses: actions/checkout@v3
 
       - name: Install poetry
-        run: pipx install poetry
+        run: pipx install "poetry<2.0.0"
 
       - name: Install poetry-relax
         run: poetry self add poetry-relax