diff --git a/requirements.txt b/requirements.txt
index 2b9b72a..c6990eb 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,4 +1,4 @@
-certifi==2018.11.29
+certifi==2022.12.7
 chardet==3.0.4
 idna==2.8
 matrix-client==0.3.2