diff --git a/.github/workflows/installation-test.yml b/.github/workflows/installation-test.yml
index 70c4fed..3dce66f 100644
--- a/.github/workflows/installation-test.yml
+++ b/.github/workflows/installation-test.yml
@@ -18,7 +18,7 @@ jobs:
             os: ["ubuntu-20.04", "ubuntu-22.04"]
             # aiohttp does not compile against 3.11
             # https://github.com/aio-libs/aiohttp/issues/6600
-            python-ver: ["3.7", "3.8", "3.9", "3.10"]
+            python-ver: ["3.7", "3.8", "3.9", "3.10", "3.11", "3.12"]
             exclude:
                 - os: ubuntu-22.04
                   python-ver: 3.6
diff --git a/requirements.txt b/requirements.txt
index bec182e..6e3d929 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,3 +1,4 @@
+cython=3.0.4
 pytest==7.3.1
 pytest-rerunfailures==10.2
 pytest-html==3.2.0