diff --git a/evaluation/product/haho_v2.py b/evaluation/product/haho_v2.py
index 16d73b4..b2ed429 100644
--- a/evaluation/product/haho_v2.py
+++ b/evaluation/product/haho_v2.py
@@ -4,7 +4,7 @@
 from langchain.chains import create_retrieval_chain
 from langchain.chains.combine_documents.stuff import create_stuff_documents_chain
 from langchain.retrievers import ContextualCompressionRetriever, MergerRetriever
-from langchain.retrievers.document_compressors import FlashrankRerank, LLMChainExtractor
+from langchain.retrievers.document_compressors import LLMChainExtractor
 from langchain_openai.embeddings import OpenAIEmbeddings
 
 from ..tools.generators.llm import get_OPENAI_llm
@@ -48,15 +48,10 @@ def ready_chain():
         base_compressor=compressor, base_retriever=wiki_retriever
     )
 
-    merger_retriever = MergerRetriever(
+    retrieval_chain = MergerRetriever(
         retrievers=[rule_retriever, wiki_retriever_small, compressed_retriever]
     )
 
-    reranker = FlashrankRerank()
-    retrieval_chain = ContextualCompressionRetriever(
-        base_compressor=reranker, base_retriever=merger_retriever
-    )
-
     # Prompt
     prompt = load_prompt(prompt_name="RAG_Instructed_ThoT", prompt_version=6)