diff --git a/mdgo/forcefield/crawler.py b/mdgo/forcefield/crawler.py
index 7b2fc5ac..38e0485e 100644
--- a/mdgo/forcefield/crawler.py
+++ b/mdgo/forcefield/crawler.py
@@ -90,7 +90,7 @@ def __init__(
         else:
             self.web = webdriver.Chrome(service=self.server, options=self.options)
         self.wait = WebDriverWait(self.web, 10)
-        self.web.get("http://zarbi.chem.yale.edu/ligpargen/")
+        self.web.get("http://traken.chem.yale.edu/ligpargen/")
         time.sleep(1)
         print("LigParGen server connected.")
 
@@ -109,7 +109,7 @@ def data_from_pdb(self, pdb_dir: str):
         Args:
             pdb_dir: The path to the input pdb structure file.
         """
-        self.web.get("http://zarbi.chem.yale.edu/ligpargen/")
+        self.web.get("http://traken.chem.yale.edu/ligpargen/")
         time.sleep(1)
         upload = self.web.find_element(By.XPATH, '//*[@id="exampleMOLFile"]')
         try:
@@ -133,7 +133,7 @@ def data_from_smiles(self, smiles_code):
         Args:
             smiles_code: The SMILES code for the LigParGen input.
         """
-        self.web.get("http://zarbi.chem.yale.edu/ligpargen/")
+        self.web.get("http://traken.chem.yale.edu/ligpargen/")
         time.sleep(1)
         smile = self.web.find_element(By.XPATH, '//*[@id="smiles"]')
         smile.send_keys(smiles_code)