Update app.py

app.py

@@ -45,7 +45,7 @@ def getresponse(userInput, api_key):
         st.session_state['conversation'] = ConversationChain(
             llm=llm,
             verbose=True,
-            memory=ConversationSummaryMemory(llm=llm)
+            memory=ConversationBufferWindowMemory(llm=llm)
         )
 
     response=st.session_state['conversation'].predict(input=userInput)