diff --git a/examples/nginx/app/Dockerfile b/examples/nginx/app/Dockerfile
index 48b84d1e..9b384ec6 100644
--- a/examples/nginx/app/Dockerfile
+++ b/examples/nginx/app/Dockerfile
@@ -1,4 +1,4 @@
-FROM public.ecr.aws/nginx/nginx:1.21.1
+FROM public.ecr.aws/runecast/nginx:1.21.1-alpine
 WORKDIR "/tmp"
 COPY --from=aws-lambda-adapter:latest /opt/bootstrap /opt/bootstrap
 ADD config/ /etc/nginx/
diff --git a/examples/springboot/app/Dockerfile b/examples/springboot/app/Dockerfile
index 011e1201..d652823f 100644
--- a/examples/springboot/app/Dockerfile
+++ b/examples/springboot/app/Dockerfile
@@ -1,4 +1,4 @@
-FROM amd64/maven as build-image
+FROM public.ecr.aws/sam/build-java8.al2:latest as build-image
 WORKDIR "/task"
 COPY src src/
 COPY pom.xml ./