diff --git a/docker/Dockerfile b/docker/Dockerfile
index a69b701..de2be70 100644
--- a/docker/Dockerfile
+++ b/docker/Dockerfile
@@ -1,4 +1,4 @@
-FROM alpine:3.18.3
+FROM alpine:3.18.4
 
 EXPOSE 5353 8080
 
diff --git a/docker/ci/Dockerfile b/docker/ci/Dockerfile
index e553fdc..0c7501c 100644
--- a/docker/ci/Dockerfile
+++ b/docker/ci/Dockerfile
@@ -1,4 +1,4 @@
-FROM alpine:3.18.3
+FROM alpine:3.18.4
 
 EXPOSE 5353 8080