diff --git a/plasma_framework/python_tests/requirements.txt b/plasma_framework/python_tests/requirements.txt
index 8e6039d73..e924b2840 100644
--- a/plasma_framework/python_tests/requirements.txt
+++ b/plasma_framework/python_tests/requirements.txt
@@ -4,7 +4,7 @@ atomicwrites==1.3.0
 attrdict==2.0.1
 attrs==19.3.0
 base58==1.0.3
-certifi==2019.9.11
+certifi==2022.12.7
 chardet==3.0.4
 cytoolz==0.10.0
 eip712-structs==1.1.0