diff --git a/Dockerfile b/Dockerfile
index d1c09e0..baa5613 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,4 +1,4 @@
-FROM node:lts-alpine
+FROM node:lts-slim
 
 WORKDIR /app
 
diff --git a/docker-compose.yml b/docker-compose.yml
index 8176559..c0dbeea 100644
--- a/docker-compose.yml
+++ b/docker-compose.yml
@@ -10,6 +10,6 @@ services:
     env_file:
       - .env
     healthcheck:
-      test: ([ "$(wget -qO- ${PROXY_PUBLIC_URL}/healthcheck)" = "ok" ] && exit 0) || exit 1
+      test: node /app/healthcheck.js
       interval: 120s
       start_period: 5s
diff --git a/healthcheck.js b/healthcheck.js
new file mode 100644
index 0000000..ce5e962
--- /dev/null
+++ b/healthcheck.js
@@ -0,0 +1,10 @@
+(async () => {
+  require('dotenv').config()
+  try {
+    const res = await fetch(process.env.PROXY_PUBLIC_URL + '/healthcheck')
+    if (await res.text() === 'ok') {
+      process.exit(0)
+    }
+  } catch (e) { }
+  process.exit(1)
+})()