diff --git a/.github/workflows/python.yml b/.github/workflows/python.yml
index 8e1b4e5..cefacdb 100644
--- a/.github/workflows/python.yml
+++ b/.github/workflows/python.yml
@@ -51,10 +51,10 @@ jobs:
 
       - name: Install Python build tools (macOS)
         if: runner.os == 'macOS'
-        run: sudo pip install --upgrade maturin setuptools wheel twine
+        run: sudo pip install --upgrade maturin==0.9.4 setuptools wheel twine
       - name: Install Python build tools (Linux, Windows)
         if: runner.os != 'macOS'
-        run: pip install --upgrade maturin setuptools wheel twine
+        run: pip install --upgrade maturin==0.9.4 setuptools wheel twine
 
       - name: Pack and publish package
         shell: bash