diff --git a/Dockerfile b/Dockerfile
index a6fe459..5069467 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -46,14 +46,14 @@ EXPOSE 8000
 # Targets diverge from here
 ########
 
-FROM base as prod
+FROM base AS prod
 
 COPY . .
 CMD uvicorn app:app --host 0.0.0.0
 
 ###
 
-FROM base as dev
+FROM base AS dev
 # You probably want sqlite3 to poke around with the database anyway
 USER root
 RUN apt update