diff --git a/Dockerfile b/Dockerfile
index e0ff680..8621076 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,4 +1,4 @@
-FROM python:3.14.3-alpine@sha256:faee120f7885a06fcc9677922331391fa690d911c020abb9e8025ff3d908e510
+FROM python:3.15.0b1-alpine@sha256:8fe37a98f64ee15fee985b1536cc005aef67847c31f435772250165307a68c2e
 
 RUN addgroup -S appgroup && adduser -S -G appgroup appuser