diff --git a/pyproject.toml b/pyproject.toml
index 5fef5a15..fe89efaa 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -1,5 +1,5 @@
 [build-system]
-requires = ["setuptools", "Cython>=3.1.1"]
+requires = ["setuptools", "Cython>=3.1.4"]
 build-backend = "setuptools.build_meta"
 
 [project]
diff --git a/requirements-dev.txt b/requirements-dev.txt
index 408b9bb6..9c33d385 100644
--- a/requirements-dev.txt
+++ b/requirements-dev.txt
@@ -1,4 +1,4 @@
-cython==3.1.1
+cython==3.1.4
 setuptools
 pytest
 pytest-asyncio