diff --git a/docker/Dockerfile b/docker/Dockerfile
index a4bb300..3c3a0ca 100644
--- a/docker/Dockerfile
+++ b/docker/Dockerfile
@@ -1,4 +1,4 @@
-FROM alpine:3.13.5
+FROM alpine:3.14.2
 
 EXPOSE 5353 8080
 
diff --git a/docker/ci/Dockerfile b/docker/ci/Dockerfile
index d24794c..08f473e 100644
--- a/docker/ci/Dockerfile
+++ b/docker/ci/Dockerfile
@@ -1,4 +1,4 @@
-FROM alpine:3.13.5
+FROM alpine:3.14.2
 
 EXPOSE 5353 8080