diff --git a/Dockerfile b/Dockerfile
index 14ead24..f2b9855 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,5 +1,5 @@
 # Use an official Python runtime as a parent image
-FROM python:3.14.0a3-alpine3.21
+FROM python:3.14.0rc3-alpine3.21
 
 ENV PYTHONUNBUFFERED=1