diff --git a/docker/Dockerfile b/docker/Dockerfile
index 9bfc951..5d89a69 100644
--- a/docker/Dockerfile
+++ b/docker/Dockerfile
@@ -1,4 +1,4 @@
-FROM alpine:3.17.3
+FROM alpine:3.18.0
 
 EXPOSE 5353 8080
 
diff --git a/docker/ci/Dockerfile b/docker/ci/Dockerfile
index aaf7da5..eb57ae1 100644
--- a/docker/ci/Dockerfile
+++ b/docker/ci/Dockerfile
@@ -1,4 +1,4 @@
-FROM alpine:3.17.3
+FROM alpine:3.18.0
 
 EXPOSE 5353 8080