diff --git a/requirements.txt b/requirements.txt
index b5c22ab..636a615 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,2 +1,2 @@
 setuptools~=70.0.0
-Cython~=3.0.0
\ No newline at end of file
+Cython~=3.1.4
\ No newline at end of file
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<p><a href="http://altstyle.alfasado.net">AltStyle</a> によって変換されたページ <a href="https://patch-diff.githubusercontent.com/raw/CodeByAidan/Cython-Tutorial/pull/21.diff">(-&gt;オリジナル)</a>
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