diff --git a/Dockerfile b/Dockerfile
index 9ab9e28..69a43e7 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -22,7 +22,7 @@ RUN set -ex \
       -mod=readonly
 
 
-FROM alpine:3.21@sha256:a8560b36e8b8210634f77d9f7f9efd7ffa463e380b75e2e74aff4511df3ef88c
+FROM alpine:3.22@sha256:8a1f59ffb675680d47db6337b49d22281a139e9d709335b492be023728e11715
 
 LABEL org.opencontainers.image.authors='Knut Ahlers <knut@ahlers.me>' \
     org.opencontainers.image.version='1.17.1' \