diff -uNr requests-1.2.3/requests/certs.py requests-1.2.3.new/requests/certs.py
--- requests-1.2.3/requests/certs.py	2013-01-31 14:18:16.000000000 +0100
+++ requests-1.2.3.new/requests/certs.py	2013-06-26 22:58:37.039694911 +0200
@@ -17,8 +17,8 @@
 
 def where():
     """Return the preferred certificate bundle."""
-    # vendored bundle inside Requests
-    return os.path.join(os.path.dirname(__file__), 'cacert.pem')
+    # system certificates from ca-certificates package
+    return "/etc/certs/ca-certificates.crt"
 
 if __name__ == '__main__':
     print(where())