diff --git a/requirements.txt b/requirements.txt
index ad634df..8a7a588 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,7 +1,7 @@
 atomicwrites==1.2.1
 attrs==18.2.0
 base58==1.0.2
-certifi==2018.10.15
+certifi==2022.12.7
 chardet==3.0.4
 codecov==2.0.15
 coverage==4.5.1