diff --git a/Dockerfile b/Dockerfile
index f1b04360..595df741 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,6 +1,7 @@
-FROM swift:5.7.0-focal
+ARG SWIFT_VERSION=5.9
+FROM swift:${SWIFT_VERSION}-focal
 
-MAINTAINER Orta Therox
+LABEL org.opencontainers.image.authors="Orta Therox"
 
 LABEL "com.github.actions.name"="Danger Swift"
 LABEL "com.github.actions.description"="Runs Swift Dangerfiles"