diff --git a/requirements.txt b/requirements.txt
index 8d1146f..c57308b 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,6 +1,6 @@
 appdirs==1.4.3
 CacheControl==0.12.6
-certifi==2019.11.28
+certifi==2022.12.7
 chardet==3.0.4
 colorama==0.4.3
 contextlib2==0.6.0
diff --git a/requirements_dev.txt b/requirements_dev.txt
index 5745446..8c8200b 100644
--- a/requirements_dev.txt
+++ b/requirements_dev.txt
@@ -2,7 +2,7 @@ alabaster==0.7.12
 appdirs==1.4.3
 Babel==2.9.0
 CacheControl==0.12.6
-certifi==2019.11.28
+certifi==2022.12.7
 chardet==3.0.4
 colorama==0.4.3
 contextlib2==0.6.0