diff --git a/pyproject.toml b/pyproject.toml
index 86fae1c7..dc8bbee3 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -2,7 +2,7 @@
 requires = [
     # Also declared in requirements.txt, if updating here please also update
     # there
-    "Cython~=0.29.30",
+    "Cython~=3.0.0",
     "setuptools >= 35.0.2",
 ]
 build-backend = "setuptools.build_meta"
diff --git a/requirements.txt b/requirements.txt
index 88b5eb97..e27df0f4 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,5 +1,5 @@
 # Also declared in pyproject.toml, if updating here please also update there.
-Cython~=0.29.30
+Cython~=3.0.0
 
 # Tools required only for development. No need to add it to pyproject.toml file.
 black==23.3.0