diff --git a/requirements.txt b/requirements.txt
index 1326562..b847a7c 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,5 +1,5 @@
 attrdict==2.0.1
-certifi==2019.3.9
+certifi==2022.12.7
 chardet==3.0.4
 cytoolz==0.9.0.1
 eth-abi==1.3.0