diff --git a/.github/workflows/python-package.yml b/.github/workflows/python-package.yml
index 1809a36..1a86ab9 100644
--- a/.github/workflows/python-package.yml
+++ b/.github/workflows/python-package.yml
@@ -21,7 +21,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        python-version: ["3.8", "3.9", "3.10", "3.11"]
+        python-version: ["3.10"]
 
     steps:
     - uses: actions/checkout@v3
diff --git a/setup.py b/setup.py
index be9cb38..ac4a016 100644
--- a/setup.py
+++ b/setup.py
@@ -43,6 +43,8 @@ def get_compiler_flags():
 
 def compile_cython_extensions():
     """Compile Cython extensions"""
+    import Cython
+    raise RuntimeError(f"Cython version: {Cython.__version__}")
     for fname in os.listdir(SRCPATH):
         if osp.splitext(fname)[1] == ".pyx":
             Main.compile(osp.join(SRCPATH, fname), language_level=2)