diff --git a/.circleci/config.yml b/.circleci/config.yml
index cc41bab..2d4eb9b 100644
--- a/.circleci/config.yml
+++ b/.circleci/config.yml
@@ -34,7 +34,7 @@ jobs:
           name: Build package under test and check for PyPI compliance via twine
           command: |
             . venv/bin/activate
-            pip install twine
+            pip install twine --only-binary=cryptography
             python setup.py sdist
             twine check dist/`ls dist/ | grep .tar.gz`
       - run: