diff --git a/keycloak/Containerfile b/keycloak/Containerfile
index 0f6f1fc..72ff902 100644
--- a/keycloak/Containerfile
+++ b/keycloak/Containerfile
@@ -1,6 +1,6 @@
 ARG TAG=latest
 
-FROM debian:12-slim as attribute-endpoints-provider-builder
+FROM debian:13-slim as attribute-endpoints-provider-builder
 
 RUN apt-get update \
     && apt-get install --no-install-recommends --no-install-suggests -y maven git \