diff --git a/Dockerfile b/Dockerfile
index 8da89c8..ab86e0c 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,4 +1,4 @@
-FROM python:3.15.0rc1-alpine
+FROM python:3.15.0rc2-alpine
 WORKDIR /usr/src/myapp
 ARG IMPLEMENTATION_VERSION
 RUN python3 -m pip install "fastjsonschema${IMPLEMENTATION_VERSION:+==$IMPLEMENTATION_VERSION}"