diff --git a/docker-compose.yml b/docker-compose.yml
index 4d2be3730..41cd1e5de 100644
--- a/docker-compose.yml
+++ b/docker-compose.yml
@@ -172,8 +172,10 @@ services:
   postgres:
     container_name: dendrite_postgres
     hostname: postgres
-    build: ./docker/postgres
+    image: postgres:9.5
     restart: always
+    volumes:
+      - ./docker/postgres/create_db.sh:/docker-entrypoint-initdb.d/20-create_db.sh
     environment:
       POSTGRES_PASSWORD: itsasecret
       POSTGRES_USER: dendrite
diff --git a/docker/postgres/Dockerfile b/docker/postgres/Dockerfile
deleted file mode 100644
index 84588199a..000000000
--- a/docker/postgres/Dockerfile
+++ /dev/null
@@ -1,3 +0,0 @@
-FROM postgres:9.5
-
-COPY ./create_db.sh   /docker-entrypoint-initdb.d/20-create_db.sh