diff --git a/.ember-cli b/.ember-cli
index 4ccb4bf..8c1812c 100644
--- a/.ember-cli
+++ b/.ember-cli
@@ -8,8 +8,8 @@
   "disableAnalytics": false,
 
   /**
-  Setting `isTypeScriptProject` to true will force the blueprint generators to generate TypeScript
-  rather than JavaScript by default, when a TypeScript version of a given blueprint is available.
+    Setting `isTypeScriptProject` to true will force the blueprint generators to generate TypeScript
+    rather than JavaScript by default, when a TypeScript version of a given blueprint is available.
   */
   "isTypeScriptProject": false
 }
diff --git a/docs/getting-started.md b/docs/getting-started.md
index 7ef5346..4b9f4f8 100644
--- a/docs/getting-started.md
+++ b/docs/getting-started.md
@@ -5,7 +5,7 @@
 Configurations can be set under the `ember-cloud-firestore-adapter` like this:
 
 ```javascript
-let ENV = {
+const ENV = {
   ...
 
   'ember-cloud-firestore-adapter': {
@@ -34,7 +34,7 @@ let ENV = {
   },
 
   ...
-}
+};
 ```
 
 ### Available Configurations
diff --git a/docs/testing.md b/docs/testing.md
index c9cf20a..087cf52 100644
--- a/docs/testing.md
+++ b/docs/testing.md
@@ -7,7 +7,7 @@ We use [Firebase Local Emulator Suite](https://firebase.google.com/docs/emulator
 Add an `ember-cloud-firestore-adapter.firestore.emulator` property in your `config/environment.js` and **make sure to disable it in production environment**.
 
 ```javascript
-let ENV = {
+const ENV = {
   ...
 
   'ember-cloud-firestore-adapter': {
@@ -16,13 +16,13 @@ let ENV = {
     firestore: {
       emulator: {
         hostname: 'localhost',
-        port: 8080
-      }
-    }
+        port: 8080,
+      },
+    },
   },
 
   ...
-}
+};
 
 if (environment === 'production') {
   ENV['ember-cloud-firestore-adapter'].firestore.emulator = null;
diff --git a/package-lock.json b/package-lock.json
index 08aab52..db130e0 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -9,7 +9,7 @@
       "version": "4.0.0",
       "license": "MIT",
       "dependencies": {
-        "ember-auto-import": "^2.4.1",
+        "ember-auto-import": "2.x",
         "ember-cli-babel": "^7.26.11",
         "ember-cli-htmlbars": "^6.0.1",
         "ember-cli-typescript": "^4.2.1"
@@ -44,7 +44,6 @@
         "@types/ember-data__store": "^4.0.7",
         "@types/ember-qunit": "^3.4.14",
         "@types/ember-resolver": "^5.0.10",
-        "@types/htmlbars-inline-precompile": "^1.0.1",
         "@types/node": "^16.10.3",
         "@types/qunit": "^2.11.2",
         "@types/rsvp": "^4.0.4",
diff --git a/package.json b/package.json
index 91ada4e..2eca3f3 100644
--- a/package.json
+++ b/package.json
@@ -32,7 +32,7 @@
     "postpack": "ember ts:clean"
   },
   "dependencies": {
-    "ember-auto-import": "^2.4.1",
+    "ember-auto-import": "2.x",
     "ember-cli-babel": "^7.26.11",
     "ember-cli-htmlbars": "^6.0.1",
     "ember-cli-typescript": "^4.2.1"
@@ -67,7 +67,6 @@
     "@types/ember-data__store": "^4.0.7",
     "@types/ember-qunit": "^3.4.14",
     "@types/ember-resolver": "^5.0.10",
-    "@types/htmlbars-inline-precompile": "^1.0.1",
     "@types/node": "^16.10.3",
     "@types/qunit": "^2.11.2",
     "@types/rsvp": "^4.0.4",
diff --git a/tests/dummy/config/environment.js b/tests/dummy/config/environment.js
index 9e65a0d..cef5b1c 100644
--- a/tests/dummy/config/environment.js
+++ b/tests/dummy/config/environment.js
@@ -1,7 +1,7 @@
 'use strict';
 
 module.exports = function (environment) {
-  let ENV = {
+  const ENV = {
     modulePrefix: 'dummy',
     environment,
     rootURL: '/',