diff --git a/Dockerfile.alpine b/Dockerfile.alpine
index 7af529a..6604033 100644
--- a/Dockerfile.alpine
+++ b/Dockerfile.alpine
@@ -1,4 +1,4 @@
-FROM alpine:3.14.1
+FROM alpine:3.21.0
 
 ARG RUBY_VERSION=2.4.4
 ARG ASSET_VERSION=local_build