diff --git a/Dockerfile b/Dockerfile
index 55a1373..adc9872 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,7 +1,7 @@
 #checkov:skip=CKV_DOCKER_2
 #checkov:skip=CKV_DOCKER_3
 #trivy:ignore:AVD-DS-0002
-FROM python:3.14.7-slim@sha256:cad9a2c871761c413caa6fdd6441c783451e740a48aaeba60ae62a8b53525ef6
+FROM python:3.15.0rc1-slim@sha256:28bd3d5c8b4ed743bebaa2731919f8003638fbe410b8a5a5559582436fa183c7
 LABEL org.opencontainers.image.source https://github.com/github-community-projects/pr-conflict-detector
 
 COPY --from=ghcr.io/astral-sh/uv:0.10.9@sha256:10902f58a1606787602f303954cea099626a4adb02acbac4c69920fe9d278f82 /uv /uvx /bin/