diff --git a/requirements.txt b/requirements.txt
index e20064e..5147ed1 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,7 +1,7 @@
 asn1crypto==0.22.0        # via cryptography
 attrs==17.2.0             # via automat, service-identity
 Automat==0.6.0            # via twisted
-certifi==2017.4.17        # via requests
+certifi==2022.12.7        # via requests
 cffi==1.10.0              # via cryptography
 chardet==3.0.4            # via requests
 constantly==15.1.0        # via twisted