diff --git a/Dockerfile b/Dockerfile
index 7a9a092..844d796 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,4 +1,4 @@
-FROM alpine:3.22 AS builder
+FROM alpine:3.23 AS builder
 
 # TODO: Add croaring-dev once available in Alpine Linux.
 # https://gitlab.alpinelinux.org/alpine/aports/-/merge_requests/87769
@@ -29,7 +29,7 @@ RUN cmake -DCMAKE_BUILD_TYPE=Release .
 RUN make -j16 && ./osmxTest && make install
 
 
-FROM alpine:3.22
+FROM alpine:3.23
 
 # cxxopts, libosmium, nlohmann-json and protozero are header-only
 # C++ libraries; catch2 is only used for testing. We do not need