diff --git a/requirements.txt b/requirements.txt
index c8dfbe26..cbb156ff 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -8,4 +8,4 @@ numpy
 visualdl
 python-Levenshtein
 opencv-contrib-python==4.2.0.32
-Cython
\ No newline at end of file
+cython
\ No newline at end of file