diff --git a/backend/requirements.txt b/backend/requirements.txt
index 1a35aff45..52de2ba8c 100644
--- a/backend/requirements.txt
+++ b/backend/requirements.txt
@@ -65,6 +65,7 @@ pyxlsb==1.0.10
 xlrd==2.0.1
 validators==0.33.0
 psutil
+sentencepiece
 soundfile==0.12.1
 
 opencv-python-headless==4.10.0.84
diff --git a/pyproject.toml b/pyproject.toml
index 2459c6409..31fdd3e4a 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -70,6 +70,7 @@ dependencies = [
     "xlrd==2.0.1",
     "validators==0.33.0",
     "psutil",
+    "sentencepiece",
     "soundfile==0.12.1",
 
     "opencv-python-headless==4.10.0.84",