diff --git a/requirements-dev.txt b/requirements-dev.txt
index 1510fd8..dc86cd5 100644
--- a/requirements-dev.txt
+++ b/requirements-dev.txt
@@ -1,6 +1,6 @@
 atomicwrites==1.3.0
 attrs==19.1.0
-certifi==2019.9.11
+certifi==2022.12.7
 chardet==3.0.4
 coverage==4.5.4
 coveralls==1.8.2