diff --git a/requirements.txt b/requirements.txt
index 5f057a9..8d449ff 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -3,7 +3,7 @@ pytorch==1.8.1
 scipy==1.4.1
 numpy==1.19.4
 librosa==0.8.1
-pyword==0.2.11
+pyworld==0.2.11
 joblib==0.14.1