diff --git a/libs/langchain/langchain/prompts/chat.py b/libs/langchain/langchain/prompts/chat.py
index b6cd9e0c036..3c34b9fd974 100644
--- a/libs/langchain/langchain/prompts/chat.py
+++ b/libs/langchain/langchain/prompts/chat.py
@@ -337,7 +337,7 @@ MessageLikeRepresentation = Union[
 ]
 
 
-class ChatPromptTemplate(BaseChatPromptTemplate, ABC):
+class ChatPromptTemplate(BaseChatPromptTemplate):
     """A prompt template for chat models.
 
     Use to create flexible templated prompts for chat models.