diff --git a/CSMNode.py b/CSMNode.py
index 8925ce7..e025eb1 100644
--- a/CSMNode.py
+++ b/CSMNode.py
@@ -214,6 +214,7 @@ MODEL_CACHE = None
 class CSMDialogRun:
     def __init__(self):
         self.device = "cuda" if torch.cuda.is_available() else "cpu"
+        self.model_name = None
 
     @classmethod
     def INPUT_TYPES(s):
@@ -282,7 +283,8 @@ class CSMDialogRun:
             ):
 
         global MODEL_CACHE
-        if MODEL_CACHE is None:
+        if MODEL_CACHE is None or self.model_name != model:
+            self.model_name = model
             csm_1b_path = os.path.join(models_dir, "TTS", "csm-1b")
             config_path = os.path.join(csm_1b_path, "config.json")
 
diff --git a/pyproject.toml b/pyproject.toml
index 4b6f5e7..c2913d7 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -1,7 +1,7 @@
 [project]
 name = "csm_mw"
 description = "ComfyUI node of Conversational Speech Model (CSM)."
-version = "1.1.1"
+version = "1.1.2"
 license = {file = "LICENSE"}
 
 [project.urls]