diff --git a/requirements.txt b/requirements.txt
index 0982a38a..a9416112 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -9,7 +9,7 @@ soundfile
 librosa==0.8.0
 numba==0.55.1;python_version<"3.10"
 numba==0.55.2;python_version=="3.10"
-inflect
+inflect==5.6.0
 tqdm
 anyascii
 pyyaml