diff --git a/docker/Dockerfile b/docker/Dockerfile
index 26548b04..843ed52b 100644
--- a/docker/Dockerfile
+++ b/docker/Dockerfile
@@ -39,7 +39,7 @@ RUN --mount=type=cache,target=/var/cache/apt,id=apt_$TARGETARCH --mount=type=tmp
     # renovate: srcname=libmemcached
     libmemcached11t64=1.1.4-1.1build3 \
     gettext \
-    tzdata=2024a-3ubuntu1.1 \
+    tzdata=2025b-0ubuntu0.24.04 \
     ca-certificates=20240203 \
     # renovate: srcname=libzstd
     zstd=1.5.5+dfsg2-2build1.1