Update app.py

app.py

@@ -151,7 +151,7 @@ with st.sidebar:
     openai_api_key = st.text_input("OpenAI API Key", key="chatbot_api_key", type="password")
     "[Get an OpenAI API key](https://platform.openai.com/account/api-keys)"
     st.markdown("## 🌍 Welcome to ClimateChat! 🌍")
-    st.markdown("ClimateChat harnesses the latest [IPCC reports](https://www.ipcc.ch/report/ar6/wg3/) and the power of Large Language Models to answer your questions about climate change. When you interact with ClimateChat not only will you receive clear, concise, and accurate answers, but each response is coupled with sources and hyperlinks for further exploration and verification.\
+    st.markdown("ClimateChat harnesses the latest [IPCC reports](https://www.ipcc.ch/report/sixth-assessment-report-cycle/) and the power of Large Language Models to answer your questions about climate change. When you interact with ClimateChat not only will you receive clear answers, but each response is coupled with sources and hyperlinks for further exploration and verification.\
                 Our objective is to make climate change information accessible, understandable, and actionable for everyone, everywhere.")
 st.title("💬🌍🌡️ClimateChat")
 st.caption("💬 A Climate Change chatbot powered by OpenAI LLM and IPCC documents")