diff --git a/apps/radicale/Dockerfile b/apps/radicale/Dockerfile
index 6b0ceb99..02fa1717 100644
--- a/apps/radicale/Dockerfile
+++ b/apps/radicale/Dockerfile
@@ -1,6 +1,6 @@
 
 # Stage 1: install app to venv
-FROM docker.io/library/debian:12.6@sha256:aadf411dc9ed5199bc7dab48b3e6ce18f8bbee4f170127f5ff1b75cd8035eb36 AS builder
+FROM docker.io/library/debian:12.8@sha256:17122fe3d66916e55c0cbd5bbf54bb3f87b3582f4d86a755a0fd3498d360f91b AS builder
 # Define build-time variables
 ARG VERSION
 USER 0:0