diff --git a/litellm/_lazy_imports_registry.py b/litellm/_lazy_imports_registry.py
index ebe9af9d85c..2af6ed8f09e 100644
--- a/litellm/_lazy_imports_registry.py
+++ b/litellm/_lazy_imports_registry.py
@@ -275,7 +275,6 @@ LLM_CONFIG_NAMES = (
     "LmStudioEmbeddingConfig",
     "NscaleConfig",
     "PerplexityChatConfig",
-    "PerplexityResponsesConfig",
     "AzureOpenAIO1Config",
     "IBMWatsonXAIConfig",
     "IBMWatsonXChatConfig",