diff --git a/Dockerfile b/Dockerfile
index e2c3e7e..25dedde 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,6 +1,6 @@
-# syntax=docker/dockerfile:1
+# syntax=docker/dockerfile:1@sha256:ecfaec9ed6d810b56388c508f4121597bfbba70d41a6dfeee4d8cad5f295fc32
 
-FROM oven/bun:1 AS base
+FROM oven/bun:1@sha256:e10577f0db68676a7024391c6e5cb4b879ebd17188ab750cf10024a6d700e5c4 AS base
 WORKDIR /app
 
 # Build