diff --git a/pyproject.toml b/pyproject.toml
index 9e68d6d..0a1bd99 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -33,7 +33,7 @@ dependencies = [
     'numba',
     'numpy',
     'pyannote.audio>=3.1.0',
-    'pydantic',
+    'pydantic>=2.0',
     'pyopenjtalk-dict',
     'pypinyin',
     # 'pyworld',
diff --git a/requirements.txt b/requirements.txt
index 669af2f..75dbdcd 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -14,7 +14,7 @@ numba
 numpy
 psutil
 pyannote.audio>=3.1.0
-pydantic
+pydantic>=2.0
 pyloudnorm
 # pyopenjtalk-prebuilt  # Should be manually uninstalled
 pyopenjtalk-dict