diff --git a/Dockerfile b/Dockerfile
index 338e12c..482e1dc 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,4 +1,4 @@
-FROM ubuntu:latest
+FROM alpine:3.13.6
 
 ADD ["https://github.com/thoughtworks/talisman/releases/download/v1.22.0/talisman_linux_amd64", "/talisman"]
 RUN chmod +x /talisman