diff --git a/06-building-container-images/client-react/Dockerfile.1 b/06-building-container-images/client-react/Dockerfile.1
index d720973..c402e7a 100644
--- a/06-building-container-images/client-react/Dockerfile.1
+++ b/06-building-container-images/client-react/Dockerfile.1
@@ -1,3 +1,4 @@
+# Pin specific version
 FROM node:19.4-bullseye
 
 COPY . .
diff --git a/06-building-container-images/client-react/Dockerfile.4 b/06-building-container-images/client-react/Dockerfile.4
index 9d50c14..09364d8 100644
--- a/06-building-container-images/client-react/Dockerfile.4
+++ b/06-building-container-images/client-react/Dockerfile.4
@@ -17,7 +17,7 @@ COPY . .
 RUN npm run build
 
 # Use separate stage for deployable image
-FROM nginx:1.23-alpine
+FROM nginxinc/nginx-unprivileged:1.23-alpine-perl
 
 COPY nginx.conf /etc/nginx/conf.d/default.conf
 
diff --git a/06-building-container-images/client-react/Dockerfile.5 b/06-building-container-images/client-react/Dockerfile.5
index 13c1902..19310d8 100644
--- a/06-building-container-images/client-react/Dockerfile.5
+++ b/06-building-container-images/client-react/Dockerfile.5
@@ -19,7 +19,7 @@ COPY . .
 RUN npm run build
 
 # Use separate stage for deployable image
-FROM nginx:1.23-alpine
+FROM nginxinc/nginx-unprivileged:1.23-alpine-perl
 
 # Use COPY --link to avoid breaking cache if we change the second stage base image
 COPY --link nginx.conf /etc/nginx/conf.d/default.conf