diff --git a/Dockerfile b/Dockerfile
index 2415258..b7a2b81 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,4 +1,4 @@
-FROM python:3.14.2-slim
+FROM python:3.15.0a5-slim
 
 ENV PYTHONDONTWRITEBYTECODE=1
 ENV PYTHONUNBUFFERED=1