diff --git a/requirements.txt b/requirements.txt
index 8a68414..56a7f70 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,7 +1,7 @@
 attrs==19.3.0
 base58==2.0.1
 bitarray==1.2.2
-certifi==2020.6.20
+certifi==2022.12.7
 chardet==3.0.4
 click==7.1.2
 cytoolz==0.10.1