diff --git a/projects/p4_soln/requirements.txt b/projects/p4_soln/requirements.txt
index 183c5e6..8c067cc 100644
--- a/projects/p4_soln/requirements.txt
+++ b/projects/p4_soln/requirements.txt
@@ -1,5 +1,5 @@
 bcrypt==3.1.7
-certifi==2019.11.28
+certifi==2022.12.7
 cffi==1.14.0
 chardet==3.0.4
 Click==7.0