diff --git a/configs/config.json b/configs/config.json
index db0411a..594cd18 100644
--- a/configs/config.json
+++ b/configs/config.json
@@ -69,5 +69,5 @@
     "use_spectral_norm": false,
     "gin_channels": 256
   },
-  "version": "2.4.dev0"
+  "version": "2.4.0"
 }
diff --git a/configs/configs_jp_extra.json b/configs/config_jp_extra.json
similarity index 98%
rename from configs/configs_jp_extra.json
rename to configs/config_jp_extra.json
index 23c5fe5..bf5722c 100644
--- a/configs/configs_jp_extra.json
+++ b/configs/config_jp_extra.json
@@ -76,5 +76,5 @@
       "initial_channel": 64
     }
   },
-  "version": "2.4.dev0-JP-Extra"
+  "version": "2.4.0-JP-Extra"
 }
diff --git a/style_bert_vits2/constants.py b/style_bert_vits2/constants.py
index aa14331..337cb81 100644
--- a/style_bert_vits2/constants.py
+++ b/style_bert_vits2/constants.py
@@ -4,7 +4,7 @@ from style_bert_vits2.utils.strenum import StrEnum
 
 
 # Style-Bert-VITS2 のバージョン
-VERSION = "2.4.dev0"
+VERSION = "2.4.0"
 
 # Style-Bert-VITS2 のベースディレクトリ
 BASE_DIR = Path(__file__).parent.parent
diff --git a/style_bert_vits2/models/hyper_parameters.py b/style_bert_vits2/models/hyper_parameters.py
index 254b285..feb6bfb 100644
--- a/style_bert_vits2/models/hyper_parameters.py
+++ b/style_bert_vits2/models/hyper_parameters.py
@@ -1,6 +1,6 @@
 """
 Style-Bert-VITS2 モデルのハイパーパラメータを表す Pydantic モデル。
-デフォルト値は configs/configs_jp_extra.json 内の定義と概ね同一で、
+デフォルト値は configs/config_jp_extra.json 内の定義と概ね同一で、
 万が一ロードした config.json に存在しないキーがあった際のフェイルセーフとして適用される。
 """
 
diff --git a/webui/train.py b/webui/train.py
index c4cd60a..eadefaf 100644
--- a/webui/train.py
+++ b/webui/train.py
@@ -65,7 +65,7 @@ def initialize(
     )
 
     default_config_path = (
-        "configs/config.json" if not use_jp_extra else "configs/configs_jp_extra.json"
+        "configs/config.json" if not use_jp_extra else "configs/config_jp_extra.json"
     )
 
     with open(default_config_path, "r", encoding="utf-8") as f: