diff --git a/tests/zenko_tests/requirements.txt b/tests/zenko_tests/requirements.txt
index 33bdddc8c6..3ad9421aec 100644
--- a/tests/zenko_tests/requirements.txt
+++ b/tests/zenko_tests/requirements.txt
@@ -6,7 +6,7 @@ botocore==1.12.24
 bravado==10.6.2
 bravado-core==5.17.0
 brotlipy==0.7.0
-certifi==2018.10.15
+certifi==2023.7.22
 cffi==1.11.5
 chardet==3.0.4
 click==6.7