diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 5347a1f..feb30cc 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -133,7 +133,7 @@ jobs:
 
       - name: Install Python dependencies
         run: |
-          pip install --upgrade pip setuptools py
+          pip install --upgrade pip 'setuptools<71' py
           pip install -e .[all]
 
       - name: Run Sphinx documentation with doctests
@@ -156,7 +156,7 @@ jobs:
 
       - name: Install Python dependencies
         run: |
-          pip install --upgrade pip setuptools py
+          pip install --upgrade pip 'setuptools<71' py
           pip install twine wheel
           pip install -e .[all]