diff --git a/cts/nginx/Dockerfile b/cts/nginx/Dockerfile
index 8612ab9..b5d6b71 100644
--- a/cts/nginx/Dockerfile
+++ b/cts/nginx/Dockerfile
@@ -1,4 +1,4 @@
-FROM nginx:alpine
+FROM cgr.dev/chainguard/nginx:latest
 
 ARG HOSTNAME