diff --git a/kubernetes/aks/series_1_endpoint/part_4_ingress_nginx_grpc/examples/dgraph/data/requirements.txt b/kubernetes/aks/series_1_endpoint/part_4_ingress_nginx_grpc/examples/dgraph/data/requirements.txt
index 939dede..145cb57 100644
--- a/kubernetes/aks/series_1_endpoint/part_4_ingress_nginx_grpc/examples/dgraph/data/requirements.txt
+++ b/kubernetes/aks/series_1_endpoint/part_4_ingress_nginx_grpc/examples/dgraph/data/requirements.txt
@@ -1,4 +1,4 @@
-certifi==2021.5.30
+certifi==2023.7.22
 grpcio==1.38.1
 protobuf==3.17.3
 pydgraph==21.3.0