diff --git a/docker/Dockerfile b/docker/Dockerfile
index 1ef96f2..c672b70 100644
--- a/docker/Dockerfile
+++ b/docker/Dockerfile
@@ -1,4 +1,4 @@
-FROM alpine:3.13.6
+FROM alpine:3.14.3
 
 EXPOSE 5353 8080
 
diff --git a/docker/ci/Dockerfile b/docker/ci/Dockerfile
index acacbf9..faa72f2 100644
--- a/docker/ci/Dockerfile
+++ b/docker/ci/Dockerfile
@@ -1,4 +1,4 @@
-FROM alpine:3.13.6
+FROM alpine:3.14.3
 
 EXPOSE 5353 8080