diff --git a/sdks/python/container/base_image_requirements_manual.txt b/sdks/python/container/base_image_requirements_manual.txt
index dd18da1c63f5..c64b7f36c03f 100644
--- a/sdks/python/container/base_image_requirements_manual.txt
+++ b/sdks/python/container/base_image_requirements_manual.txt
@@ -27,7 +27,7 @@
 bs4  # Commonly used HTML processing tool.
 # Don't upgrade to Cython 3.x, until it's released, stable and we have consensus
 # to upgrade. Use 0.xx for now.
-cython<1
+cython<4
 # future is no longer a Beam dependency, but is an implicit dependency in
 # some versions of libraries that launch Beam pipelines, like tensorflow-transform.
 # Leaving 'future' in our containers for now prevent breaking tft users.
diff --git a/sdks/python/pyproject.toml b/sdks/python/pyproject.toml
index d185c45f6191..cd23dc3378ea 100644
--- a/sdks/python/pyproject.toml
+++ b/sdks/python/pyproject.toml
@@ -28,7 +28,7 @@ requires = [
     # Numpy headers
     "numpy>=1.14.3,<1.25", # Update setup.py as well.
     # having cython here will create wheels that are platform dependent.
-    "cython==0.29.36",
+    "cython==3.1.2",
 ]