#2463·yfinance

[0.2.59] CertificateVerifyError('Failed to perform, curl: (60) SSL certificate problem: self signed certificate in certificate chain. See https://curl.se/libcurl/c/libcurl-errors.html first for more details.')

Author: PhDdropoutCreated May 8, 2025Updated Aug 24, 2026

Describe bug

Hello,

using yfinance ==0.2.59 and python 3.3.13 I get an error message while running a line of code

Could anyone give me some suggestions? This issue came after the Rate limiting one: YFRateLimitError('Too Many Requests)

Simple code that reproduces your problem

yf.download(actifs_cad, start = last_day_of_last_year)['Close']

Debug log from yf.enable_debug_mode()

Error: CertificateVerifyError('Failed to perform, curl: (60) SSL certificate problem: self signed certificate in certificate chain. See https://curl.se/libcurl/c/libcurl-errors.html first for more details.')

Bad data proof

No response

yfinance version

0.2.59

Python version

3.3.13

Operating system

No response