diff --git a/ecr/ecr.tf b/ecr/ecr.tf
index 4afdfda..2e2a3a6 100644
--- a/ecr/ecr.tf
+++ b/ecr/ecr.tf
@@ -55,3 +55,8 @@ resource "aws_ecr_lifecycle_policy" "us_west_2" {
 }
 EOF
 }
+
+resource "aws_ecr_pull_through_cache_rule" "ecr_public" {
+  ecr_repository_prefix = "ecr-public"
+  upstream_registry_url = "public.ecr.aws"
+}