diff --git a/requirements.txt b/requirements.txt
index 2944e6face..adddc56f52 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -39,7 +39,7 @@ hangul_romanize
 # gruut+supported langs
 gruut[de,es,fr]==2.2.3
 # deps for korean
-jamo
+jamo>=0.4.1
 nltk
 g2pkk>=0.1.1
 # deps for bangla
@@ -54,4 +54,4 @@ encodec>=0.1.1
 # deps for XTTS
 unidecode>=1.3.2
 num2words
-spacy[ja]>=3
\ No newline at end of file
+spacy[ja]>=3