diff --git a/Dockerfile b/Dockerfile
index c436c46..7eed46b 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,5 +1,5 @@
 # Use an official Python runtime as the parent image
-FROM python:3.11.8-alpine3.19
+FROM python:3.11.8-alpine3.19@sha256:b6bd7d58b4e0f38cd151de9b96fffc9edf647bc6ba490ffe772d5d5eab11acda
 
 # Set the working directory in the container to /app
 WORKDIR /app