diff --git a/Dockerfile b/Dockerfile
index ce35aa506..540f2e821 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,4 +1,4 @@
-FROM alpine:3.14.3
+FROM alpine:3.15.0
 
 VOLUME /var/www/app/data
 VOLUME /var/www/app/plugins