diff --git a/Dockerfile b/Dockerfile
index 6759470..cde6e50 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:3.14.6-slim@sha256:cea0e6040540fb2b965b6e7fb5ffa00871e632eef63719f0ea54bca189ce14a6
+FROM python:3.15.0rc1-slim@sha256:d66aca68fc851b8e5b1bc350f7154fe408cf0e85e70c37d18a385591d9bf2743
 LABEL com.github.actions.name="stale-repos" \
     com.github.actions.description="Find stale repositories in a GitHub organization." \
     com.github.actions.icon="check-square" \