diff --git a/requirements.txt b/requirements.txt
index 35a5c96..a520e82 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -5,7 +5,7 @@
 #    pip-compile
 #
 apispec[yaml]==1.3.3      # via pyramid-apispec
-certifi==2019.11.28       # via requests
+certifi==2022.12.7       # via requests
 chardet==3.0.4            # via requests
 gevent==1.4.0
 greenlet==0.4.15          # via gevent