diff --git a/smm4h/requirements.txt b/smm4h/requirements.txt
index 45171f1..dd915db 100644
--- a/smm4h/requirements.txt
+++ b/smm4h/requirements.txt
@@ -7,7 +7,7 @@ backports-abc==0.5
 bleach==3.1.4
 blis==0.2.4
 cachetools==2.1.0
-certifi==2018.4.16
+certifi==2022.12.7
 cffi==1.11.5
 chances==0.1.9
 chardet==3.0.4