certifi

requirements.txt

@@ -9,3 +9,4 @@ langchain_community
 langchain-openai
 langchain-anthropic
 langgraph
+certifi

tools.py

@@ -1,6 +1,7 @@
 import os
 import base64
 import urllib3
+import certifi
 import requests
 import tempfile
 import pandas as pd
@@ -265,7 +266,7 @@ def _fetch_ddg_search_result_links(query: str) -> ResultSet[PageElement | Tag |
         'kl': 'us-en'
     }
 
-    ddg_response = requests.get(url, headers=headers, params=params)
+    ddg_response = requests.get(url, headers=headers, params=params, verify=certifi.where())
     ddg_response.raise_for_status()
 
     soup = BeautifulSoup(ddg_response.text, 'html.parser')
@@ -279,7 +280,7 @@ def _fetch_specific_page(url: str) -> str:
         'Accept-Language': 'en-US,en;q=0.5',
     }
 
-    wiki_response = requests.get(url, headers=headers)
+    wiki_response = requests.get(url, headers=headers, verify=certifi.where())
     wiki_response.raise_for_status()
 
     soup = BeautifulSoup(wiki_response.text, 'html.parser')