diff --git a/Dockerfile b/Dockerfile
index 7e4b43c4..aaeaca81 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,4 +1,4 @@
-FROM python:3.14.6-slim-bookworm AS builder
+FROM python:3.15.0b3-slim-bookworm AS builder
 
 ARG VERSION
 
@@ -13,7 +13,7 @@ RUN test -n "${VERSION}" \
     && pip install --no-cache-dir --upgrade pip \
     && pip install --no-cache-dir "datamodel-code-generator[http]==${VERSION}"
 
-FROM python:3.14.6-slim-bookworm
+FROM python:3.15.0b3-slim-bookworm
 
 ARG VERSION