diff --git a/assemblyai/__version__.py b/assemblyai/__version__.py
index ea2be9a..8261441 100644
--- a/assemblyai/__version__.py
+++ b/assemblyai/__version__.py
@@ -1 +1 @@
-__version__ = "0.64.1"
+__version__ = "0.64.2"
diff --git a/assemblyai/types.py b/assemblyai/types.py
index f39beff..f97d176 100644
--- a/assemblyai/types.py
+++ b/assemblyai/types.py
@@ -603,6 +603,10 @@ class LanguageDetectionOptions(BaseModel):
         None,
         description="If True, route German language requests as Swiss German audio. Only applies when language_detection is enabled and German is detected.",
     )
+    language_detection_model: Optional[str] = Field(
+        None,
+        description="The language detection model to use.",
+    )
 
 
 class CodeSwitchingLanguage(BaseModel):