diff --git a/tests/requirements.txt b/tests/requirements.txt
index e4443e3..fe4b788 100644
--- a/tests/requirements.txt
+++ b/tests/requirements.txt
@@ -1,5 +1,5 @@
 anyio==3.6.2; python_full_version >= "3.6.2" and python_version >= "3.7"
-certifi==2022.12.7; python_version >= "3.7"
+certifi==2023.7.22; python_version >= "3.7"
 cfgv==3.3.1; python_full_version >= "3.6.1" and python_version >= "3.8"
 colorama==0.4.6; python_version >= "3.7" and python_full_version < "3.0.0" and sys_platform == "win32" or sys_platform == "win32" and python_version >= "3.7" and python_full_version >= "3.7.0"
 distlib==0.3.6; python_version >= "3.8"