diff --git a/requirements.txt b/requirements.txt
index 9c39ab1..8b6def3 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,3 +1,3 @@
 av==10.*
-ctranslate2>=3.5,<4
+ctranslate2>=3.5.1,<4
 tokenizers==0.13.*