diff --git a/Dockerfile b/Dockerfile
index cf2506c..e7087a9 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,4 +1,4 @@
-FROM appwrite/synapse-server:latest AS base
+FROM appwrite/synapse-server:latest@sha256:c43483d663d48890f4ad6a66681fcea2ac0dd1d5e0d05f3a52460170ca7dd9d6 AS base
 RUN apt-get update && apt-get install -y git
 RUN npm install -g pnpm pm2
 RUN apt-get update && apt-get install -y lsof