diff --git a/pdm.lock b/pdm.lock
index 4822ee44..de5cb378 100644
--- a/pdm.lock
+++ b/pdm.lock
@@ -5,7 +5,18 @@
 groups = ["default"]
 strategy = ["cross_platform", "inherit_metadata"]
 lock_version = "4.4.1"
-content_hash = "sha256:a3131d54d0dfa1bfda5ff105ae35b9c272ad4a4e5488c0db2c1c844299a1f60d"
+content_hash = "sha256:374f99868686f0abfeeb2cf0eca54b722de61ce9c23042eec01b9101b54602ad"
+
+[[package]]
+name = "annotated-types"
+version = "0.7.0"
+requires_python = ">=3.8"
+summary = "Reusable constraint types to use with typing.Annotated"
+groups = ["default"]
+files = [
+    {file = "annotated_types-0.7.0-py3-none-any.whl", hash = "sha256:1f02e8b43a8fbbc3f3e0d4f0f4bfc8131bcb4eebe8849b8e5c773f3a1c582a53"},
+    {file = "annotated_types-0.7.0.tar.gz", hash = "sha256:aff07c09a53a08bc8cfccb9c85b05f1aa9a2a6f23728d790723543408344ce89"},
+]
 
 [[package]]
 name = "audioread"
@@ -859,6 +870,76 @@ files = [
     {file = "pycparser-2.22.tar.gz", hash = "sha256:491c8be9c040f5390f5bf44a5b07752bd07f56edf992381b05c701439eec10f6"},
 ]
 
+[[package]]
+name = "pydantic"
+version = "2.7.4"
+requires_python = ">=3.8"
+summary = "Data validation using Python type hints"
+groups = ["default"]
+dependencies = [
+    "annotated-types>=0.4.0",
+    "pydantic-core==2.18.4",
+    "typing-extensions>=4.6.1",
+]
+files = [
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+    {file = "pydantic-2.7.4.tar.gz", hash = "sha256:0c84efd9548d545f63ac0060c1e4d39bb9b14db8b3c0652338aecc07b5adec52"},
+]
+
+[[package]]
+name = "pydantic-core"
+version = "2.18.4"
+requires_python = ">=3.8"
+summary = "Core functionality for Pydantic validation and serialization"
+groups = ["default"]
+dependencies = [
+    "typing-extensions!=4.7.0,>=4.6.0",
+]
+files = [
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+    {file = "pydantic_core-2.18.4.tar.gz", hash = "sha256:ec3beeada09ff865c344ff3bc2f427f5e6c26401cc6113d77e372c3fdac73864"},
+]
+
 [[package]]
 name = "pyopenjtalk"
 version = "0.3.3"
diff --git a/pyproject.toml b/pyproject.toml
index c331e2f3..967fde63 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -1,6 +1,6 @@
 [project]
 name = "GPT-SoVITS-Infer"
-version = "0.2.6"
+version = "0.2.7"
 description = "Inference code for GPT-SoVITS"
 authors = [
     {name = "Yanli",email = "mail@yanli.one"},
@@ -20,6 +20,7 @@ dependencies = [
     "g2p-en>=2.1.0",
     "wordsegment>=1.3.1",
     "nltk>=3.8.1",
+    "pydantic>=2.7.4",
 ]
 requires-python = ">=3.10, <3.12"
 readme = "README.md"