diff --git a/Dockerfile b/Dockerfile
index 29e5aef..dfb733b 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,4 +1,4 @@
-FROM alpine:3.5
+FROM alpine:3.20
 
 RUN apk --update add ca-certificates atop
 
@@ -6,4 +6,4 @@ ADD build/promviz /bin
 
 EXPOSE 9091
 
-ENTRYPOINT ["/bin/promviz"]
\ No newline at end of file
+ENTRYPOINT ["/bin/promviz"]