diff --git a/webhooks/admission/docker-compose.yml b/webhooks/admission/docker-compose.yml
index 6a066734..af4653d5 100644
--- a/webhooks/admission/docker-compose.yml
+++ b/webhooks/admission/docker-compose.yml
@@ -3,8 +3,8 @@ version: "3"
 services:
 
   ngrok-echo:
-    build: ngrok
-    command: ngrok http --log=stdout localhost:3000
+    image: ngrok/ngrok
+    command: http --log=stdout localhost:3000
     ports:
     - 3000
 
@@ -14,8 +14,8 @@ services:
     command: npx http-echo-server
 
   ngrok-flask:
-    build: ngrok
-    command: ngrok http --log=stdout localhost:5000
+    image: ngrok/ngrok
+    command: http --log=stdout localhost:5000
     ports:
     - 5000
 
diff --git a/webhooks/admission/ngrok/Dockerfile b/webhooks/admission/ngrok/Dockerfile
deleted file mode 100644
index c1fa39af..00000000
--- a/webhooks/admission/ngrok/Dockerfile
+++ /dev/null
@@ -1,7 +0,0 @@
-FROM alpine
-RUN apk add curl unzip
-RUN curl -O https://bin.equinox.io/c/4VmDzA7iaHb/ngrok-stable-linux-amd64.zip
-RUN unzip ngrok-stable-linux-amd64
-FROM alpine
-COPY --from=0 /ngrok /usr/local/bin/ngrok
-