diff --git a/pyproject.toml b/pyproject.toml
index b53d030..6eb1fc9 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -3,6 +3,6 @@ requires = [
     "wheel>=0.29.0",
     "setuptools>=42.0.0",
     "oldest-supported-numpy",
-    "Cython<3.0",
+    "Cython",
     "mako"
 ]
\ No newline at end of file
diff --git a/requirements.txt b/requirements.txt
index 3b2a031..0926b8a 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,4 +1,4 @@
-Cython<3.0
+Cython
 setuptools>=6.0
 numpy
 mako
diff --git a/setup.py b/setup.py
index bcf12ab..3801e83 100644
--- a/setup.py
+++ b/setup.py
@@ -87,7 +87,7 @@ def setup_package():
 
     # The requirements.
     install_requires = [
-        'numpy', 'mako', 'Cython<3.0', 'setuptools>=6.0'
+        'numpy', 'mako', 'Cython', 'setuptools>=6.0'
     ]
     tests_require = ["pytest", "pytest-benchmark[histogram]"]
     docs_require = ["sphinx"]