diff --git a/requirements.txt b/requirements.txt
index f2df4d7..b9ae6d5 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -8,7 +8,7 @@ bitcoin==1.1.42
 bitmerchant==0.1.8
 bleach==3.1.0
 cachetools==3.1.0
-certifi==2018.11.29
+certifi==2022.12.7
 cffi==1.11.5
 chardet==3.0.4
 Click==7.0