diff --git a/sources/requirements.txt b/sources/requirements.txt
index f4bc537..a5d0069 100644
--- a/sources/requirements.txt
+++ b/sources/requirements.txt
@@ -1,4 +1,4 @@
-certifi==2019.11.28
+certifi==2022.12.7
 chardet==3.0.4
 gmqtt==0.5.3
 idna==2.8