diff --git a/modules/prompt_parser_diffusers.py b/modules/prompt_parser_diffusers.py
index 4aaf49a39..4b8791d0f 100644
--- a/modules/prompt_parser_diffusers.py
+++ b/modules/prompt_parser_diffusers.py
@@ -85,8 +85,12 @@ class PromptEmbedder:
     def checkcache(self, p):
         if shared.opts.sd_textencoder_cache_size == 0:
             return False
+        if self.scheduled_prompt:
+            debug("Prompt cache: scheduled prompt")
+            cache.clear()
+            return False
         if self.attention != shared.opts.prompt_attention:
-            debug(f"Prompt change: parser={shared.opts.prompt_attention}")
+            debug(f"Prompt cache: parser={shared.opts.prompt_attention} changed")
             cache.clear()
             return False
 
diff --git a/requirements.txt b/requirements.txt
index 717b6fb5e..0bc763167 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -52,7 +52,7 @@ numba==0.59.1
 protobuf==4.25.3
 pytorch_lightning==1.9.4
 tokenizers==0.21.1
-transformers==4.50.3
+transformers==4.51.1
 urllib3==1.26.19
 Pillow==10.4.0
 timm==0.9.16