diff --git a/requirements.txt b/requirements.txt
index 2d2a1c3..b81cfe3 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -6,7 +6,7 @@ Babel==2.9.1
 boto3==1.18.44
 botocore==1.21.44
 cachetools==4.2.4
-certifi==2022.12.7
+certifi==2023.7.22
 chardet==4.0.0
 ceda-directory-tree==1.0.0
 docutils==0.16