diff --git a/package.json b/package.json
index 302ce6e888..ade1a89a81 100644
--- a/package.json
+++ b/package.json
@@ -34,9 +34,8 @@
     "multer": "^1.1.0",
     "parse": "^1.8.0",
     "parse-server-fs-adapter": "^1.0.0",
-    "parse-server-gcs-adapter": "^1.0.0",
     "parse-server-push-adapter": "^1.0.0",
-    "parse-server-s3-adapter": "^1.0.0",
+    "parse-server-s3-adapter": "^1.0.1",
     "parse-server-simple-mailgun-adapter": "^1.0.0",
     "redis": "^2.5.0-1",
     "request": "^2.65.0",
@@ -61,7 +60,8 @@
     "gaze": "^0.5.2",
     "jasmine": "^2.3.2",
     "mongodb-runner": "3.1.15",
-    "nodemon": "^1.8.1"
+    "nodemon": "^1.8.1",
+    "parse-server-gcs-adapter": "^1.0.0"
   },
   "scripts": {
     "dev": "npm run build && node bin/dev",
diff --git a/spec/index.spec.js b/spec/index.spec.js
index b58cb2f2a6..48f59d1ac0 100644
--- a/spec/index.spec.js
+++ b/spec/index.spec.js
@@ -241,9 +241,9 @@ describe('server', () => {
     done();
   });
 
-  it('exposes all the "core" adapters', done => {
+  it('core adapters are not exposed anymore', done => {
     expect(ParseServer.S3Adapter).toThrow();
-    expect(ParseServer.GCSAdapter).toThrow('GCSAdapter requires an projectId');
+    expect(ParseServer.GCSAdapter).toThrow('GCSAdapter is not provided by parse-server anymore; please install parse-server-gcs-adapter');
     expect(ParseServer.FileSystemAdapter).toThrow();
     done();
   });
diff --git a/src/deprecated.js b/src/deprecated.js
new file mode 100644
index 0000000000..7192336c2c
--- /dev/null
+++ b/src/deprecated.js
@@ -0,0 +1,5 @@
+export function useExternal(name, moduleName) {
+  return function() {
+    throw `${name} is not provided by parse-server anymore; please install ${moduleName}`;
+  }
+}
diff --git a/src/index.js b/src/index.js
index bdf6b34231..515ea732ae 100644
--- a/src/index.js
+++ b/src/index.js
@@ -1,8 +1,8 @@
 import winston           from 'winston';
 import ParseServer       from './ParseServer';
-import GCSAdapter        from 'parse-server-gcs-adapter';
-import S3Adapter         from 'parse-server-s3-adapter';
-import FileSystemAdapter from 'parse-server-fs-adapter';
+import S3Adapter         from 'parse-server-s3-adapter'
+import FileSystemAdapter from 'parse-server-fs-adapter'
+import { useExternal }   from './deprecated'
 
 if (process.env.VERBOSE || process.env.VERBOSE_PARSE_SERVER) {
   winston.level = 'silly';
@@ -20,5 +20,7 @@ let _ParseServer = function(options) {
 // Mount the create liveQueryServer
 _ParseServer.createLiveQueryServer = ParseServer.createLiveQueryServer;
 
+let GCSAdapter = useExternal('GCSAdapter', 'parse-server-gcs-adapter');
+
 export default ParseServer;
 export { S3Adapter, GCSAdapter, FileSystemAdapter, _ParseServer as ParseServer };