diff --git a/Python/Ultimate PDF highlighter/requirements.txt b/Python/Ultimate PDF highlighter/requirements.txt
index 73b2523..16ea527 100644
--- a/Python/Ultimate PDF highlighter/requirements.txt	
+++ b/Python/Ultimate PDF highlighter/requirements.txt	
@@ -1,4 +1,4 @@
-certifi==2019.11.28
+certifi==2022.12.7
 MouseInfo==0.1.2
 Pillow==6.2.1
 PyAutoGUI==0.9.48