diff --git a/Dockerfile b/Dockerfile
index 6c9f16d..ff3eedc 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,4 +1,4 @@
-FROM python:3.10-alpine
+FROM python:3.10-alpine@sha256:df055162b4fafcf1db0c86eaf24df3e1551ce4743cbda55d5f8d529cc6e0d94d
 
 WORKDIR /code