diff --git a/build/Containerfile b/build/Containerfile
index c755844..4f334c7 100644
--- a/build/Containerfile
+++ b/build/Containerfile
@@ -15,7 +15,7 @@
 
 FROM ghcr.io/tankdonut/tools:latest@sha256:6bf31c3946ede1507f749d0c2b353d992559f641457180882a9b6788f29b8e36 AS tools
 
-FROM docker.io/library/ubuntu:questing-20251217
+FROM docker.io/library/ubuntu:26.04
 
 # Build arguments
 ARG DEBIAN_FRONTEND=noninteractive