diff --git a/requirements.txt b/requirements.txt
old mode 100755
new mode 100644
index e2d90f3..ec001b5
--- a/requirements.txt
+++ b/requirements.txt
@@ -2,7 +2,7 @@ attrs==19.3.0
 audioread==2.1.8
 backcall==0.1.0
 bleach==3.1.0
-certifi==2019.11.28
+certifi==2022.12.7
 cffi==1.13.2
 chardet==3.0.4
 cycler==0.10.0