diff --git a/cfr/psm.py b/cfr/psm.py
index b6384df..e095030 100644
--- a/cfr/psm.py
+++ b/cfr/psm.py
@@ -1,4 +1,3 @@
-from turtle import color
 import numpy as np
 import pandas as pd
 from datetime import datetime
@@ -1143,4 +1142,4 @@ def forward(self, **vsl_kwargs):
             time_unit=self.pobj.time_unit,
         )
 
-        return pp
+        return pp
\ No newline at end of file
diff --git a/cfr/utils.py b/cfr/utils.py
index 9922e69..1d775a9 100644
--- a/cfr/utils.py
+++ b/cfr/utils.py
@@ -634,8 +634,8 @@ def replace_str(fpath, d):
         f.write(text)
 
 
-def download(url: str, fname: str, chunk_size=1024, show_bar=True):
-    resp = requests.get(url, stream=True)
+def download(url: str, fname: str, chunk_size=1024, show_bar=True, verify=False):
+    resp = requests.get(url, stream=True, verify=verify)
     total = int(resp.headers.get('content-length', 0))
     if show_bar:
         with open(fname, 'wb') as file, tqdm(
diff --git a/setup.py b/setup.py
index ea89178..44bab26 100644
--- a/setup.py
+++ b/setup.py
@@ -5,7 +5,7 @@
 
 setup(
     name='cfr',  # required
-    version='2024.1.26',
+    version='2024.4.3',
     description='cfr: a Python package for Climate Field Reconstruction',
     long_description=long_description,
     long_description_content_type='text/x-rst',