diff --git a/Dockerfile b/Dockerfile
index cdd495c..8c47722 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,18 +1,17 @@
-FROM node:8.9.4
+FROM node:lts-alpine
 
 # Update everything on the box
-RUN apt-get -y update
-RUN apt-get clean
+RUN apk update
 
 # Set the working directory
-WORKDIR /srv/src
+WORKDIR /srv
 
 # Copy our package.json & install our dependencies
-COPY package.json /srv/src/package.json
-RUN yarn install
+COPY package.json /srv/package.json
+RUN npm install --production
 
 # Copy the remaining application code
-COPY . /srv/src
+COPY . /srv/
 
 # Start the app
-CMD yarn start
+CMD npm start
diff --git a/package.json b/package.json
index f70d103..1cb7080 100644
--- a/package.json
+++ b/package.json
@@ -33,7 +33,7 @@
     ]
   },
   "dependencies": {
-    "@asymmetrik/node-fhir-server-core": "git+https://github.com/Asymmetrik/node-fhir-server-core.git",
+    "@asymmetrik/node-fhir-server-core": "^1.4.0",
     "jsonwebtoken": "^8.1.0",
     "moment-timezone": "^0.5.14",
     "var": "^0.3.2"
diff --git a/src/config.js b/src/config.js
index 718466a..38c63d0 100644
--- a/src/config.js
+++ b/src/config.js
@@ -18,7 +18,7 @@ let whitelist = whitelist_env && whitelist_env.length === 1
 let fhirServerConfig = {
 	auth: {
 		// This servers URI
-		resourceServer: env.RESOURCE_SERVER,
+		resourceServer: env.RESOURCE_SERVER || 'http://localhost:3000',
 		//
 		// if you use this strategy, you need to add the corresponding env vars to docker-compose
 		//
@@ -30,7 +30,7 @@ let fhirServerConfig = {
 	},
 	server: {
 		// support various ENV that uses PORT vs SERVER_PORT
-		port: env.PORT || env.SERVER_PORT,
+		port: env.PORT || env.SERVER_PORT || 3000,
 		// allow Access-Control-Allow-Origin
 		corsOptions: {
 			maxAge: 86400,
@@ -38,23 +38,23 @@ let fhirServerConfig = {
 		}
 	},
 	logging: {
-		level: env.LOGGING_LEVEL
+		level: env.LOGGING_LEVEL || 'warn'
 	},
 	//
 	// If you want to set up conformance statement with security enabled
 	// Uncomment the following block
 	//
-	security: [
-		{
-			url: 'authorize',
-			valueUri: `${env.AUTH_SERVER_URI}/authorize`
-		},
-		{
-			url: 'token',
-			valueUri: `${env.AUTH_SERVER_URI}/token`
-		}
-		// optional - registration
-	],
+	// security: [
+	// 	{
+	// 		url: 'authorize',
+	// 		valueUri: `${env.AUTH_SERVER_URI}/authorize`
+	// 	},
+	// 	{
+	// 		url: 'token',
+	// 		valueUri: `${env.AUTH_SERVER_URI}/token`
+	// 	}
+	// 	// optional - registration
+	// ],
 	//
 	// Comment out any profiles you do not wish to support.  Each profile can support multiple versions
 	// if supported by core.  We currently only have 3_0_1 profiles but will soon support DSTU2 and R4 versions.
diff --git a/src/index.js b/src/index.js
index f993006..9c16df7 100644
--- a/src/index.js
+++ b/src/index.js
@@ -11,7 +11,7 @@ let main = async function () {
 
 	// Start our FHIR server
 	let server = FHIRServer.initialize(fhirServerConfig);
-	server.listen(fhirServerConfig.server.port, () => server.logger.verbose('Server is up and running!'));
+	server.listen(fhirServerConfig.server.port, () => server.logger.verbose(`Server is up and running on port ${fhirServerConfig.server.port}!`));
 };
 
 main();