diff --git a/.drone.yml b/.drone.yml
index 5f390ac..18c873c 100644
--- a/.drone.yml
+++ b/.drone.yml
@@ -16,7 +16,7 @@ steps:
 - name: markdown lint
   commands:
   - markdownlint *.md
-  image: git.cryptic.systems/volker.raschek/markdownlint:0.44.0
+  image: git.cryptic.systems/volker.raschek/markdownlint:0.45.0
   resources:
     limits:
       cpu: 150
diff --git a/Dockerfile b/Dockerfile
index 4a24b3f..97bb8dc 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -11,7 +11,7 @@ RUN set -ex && \
     apk add git make && \
     make install VERSION=${VERSION} DESTDIR=/db-wait PREFIX=/usr
 
-FROM docker.io/library/alpine:3.21
+FROM docker.io/library/alpine:3.22
 
 ARG VERSION=latest