diff --git a/requirements.txt b/requirements.txt
old mode 100755
new mode 100644
index b778a08..4a9b943
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,4 +1,4 @@
-certifi==2018.11.29
+certifi==2022.12.7
 chardet==3.0.4
 coreapi==2.3.3
 coreschema==0.0.4