diff --git a/Dockerfile b/Dockerfile
index fd6d534..2ea3466 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -2,8 +2,8 @@ FROM alpine
 
 RUN apk add --no-cache curl
 
-RUN curl https://get.fly.io/flyctl.sh | sh
+RUN curl -L https://fly.io/install.sh | FLYCTL_INSTALL=/usr/local sh
 
 COPY entrypoint.sh /entrypoint.sh
 
-ENTRYPOINT ["/entrypoint.sh"]
\ No newline at end of file
+ENTRYPOINT ["/entrypoint.sh"]