diff --git a/Dockerfile b/Dockerfile
index 5ddaca6..5add3ca 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,4 +1,4 @@
-FROM alpine:3.14
+FROM alpine:3.15
 
 LABEL maintainer="Peter Dave Hello <hsu@peterdavehello.org>"
 LABEL name="tor-socks-proxy"