diff --git a/services/notifications/.mocharc.json b/services/notifications/.mocharc.json
new file mode 100644
index 0000000000..dc3280aa96
--- /dev/null
+++ b/services/notifications/.mocharc.json
@@ -0,0 +1,3 @@
+{
+  "require": "test/setup.js"
+}
diff --git a/services/notifications/.nvmrc b/services/notifications/.nvmrc
index 2baa2d433a..e68b860383 100644
--- a/services/notifications/.nvmrc
+++ b/services/notifications/.nvmrc
@@ -1 +1 @@
-10.23.1
+12.21.0
diff --git a/services/notifications/Dockerfile b/services/notifications/Dockerfile
index 2da67d2436..4f417a2a4b 100644
--- a/services/notifications/Dockerfile
+++ b/services/notifications/Dockerfile
@@ -2,7 +2,7 @@
 # Instead run bin/update_build_scripts from
 # https://github.com/sharelatex/sharelatex-dev-environment
 
-FROM node:10.23.1 as base
+FROM node:12.21.0 as base
 
 WORKDIR /app
 
diff --git a/services/notifications/Makefile b/services/notifications/Makefile
index 7ecedd2ab1..2332aeb439 100644
--- a/services/notifications/Makefile
+++ b/services/notifications/Makefile
@@ -21,8 +21,10 @@ DOCKER_COMPOSE_TEST_UNIT = \
 	COMPOSE_PROJECT_NAME=test_unit_$(BUILD_DIR_NAME) $(DOCKER_COMPOSE)
 
 clean:
-	docker rmi ci/$(PROJECT_NAME):$(BRANCH_NAME)-$(BUILD_NUMBER)
-	docker rmi gcr.io/overleaf-ops/$(PROJECT_NAME):$(BRANCH_NAME)-$(BUILD_NUMBER)
+	-docker rmi ci/$(PROJECT_NAME):$(BRANCH_NAME)-$(BUILD_NUMBER)
+	-docker rmi gcr.io/overleaf-ops/$(PROJECT_NAME):$(BRANCH_NAME)-$(BUILD_NUMBER)
+	-$(DOCKER_COMPOSE_TEST_UNIT) down --rmi local
+	-$(DOCKER_COMPOSE_TEST_ACCEPTANCE) down --rmi local
 
 format:
 	$(DOCKER_COMPOSE) run --rm test_unit npm run --silent format
diff --git a/services/notifications/buildscript.txt b/services/notifications/buildscript.txt
index 8d5b415e88..72c96faed9 100644
--- a/services/notifications/buildscript.txt
+++ b/services/notifications/buildscript.txt
@@ -3,6 +3,6 @@ notifications
 --docker-repos=gcr.io/overleaf-ops
 --env-add=
 --env-pass-through=
---node-version=10.23.1
+--node-version=12.21.0
 --public-repo=True
---script-version=3.4.0
+--script-version=3.7.0
diff --git a/services/notifications/docker-compose.yml b/services/notifications/docker-compose.yml
index 8be027dba1..1a8d6095ee 100644
--- a/services/notifications/docker-compose.yml
+++ b/services/notifications/docker-compose.yml
@@ -6,7 +6,7 @@ version: "2.3"
 
 services:
   test_unit:
-    image: node:10.23.1
+    image: node:12.21.0
     volumes:
       - .:/app
     working_dir: /app
@@ -18,7 +18,7 @@ services:
     user: node
 
   test_acceptance:
-    image: node:10.23.1
+    image: node:12.21.0
     volumes:
       - .:/app
     working_dir: /app
diff --git a/services/notifications/test/setup.js b/services/notifications/test/setup.js
new file mode 100644
index 0000000000..9ebe599cea
--- /dev/null
+++ b/services/notifications/test/setup.js
@@ -0,0 +1,21 @@
+const chai = require('chai')
+const SandboxedModule = require('sandboxed-module')
+
+// Chai configuration
+chai.should()
+
+// SandboxedModule configuration
+SandboxedModule.configure({
+  requires: {
+    'logger-sharelatex': {
+      debug() {},
+      log() {},
+      info() {},
+      warn() {},
+      err() {},
+      error() {},
+      fatal() {}
+    }
+  },
+  globals: { Buffer, JSON, console, process }
+})
diff --git a/services/notifications/test/unit/js/NotificationsControllerTest.js b/services/notifications/test/unit/js/NotificationsControllerTest.js
index 7ee78b6c5b..e63b83b9fb 100644
--- a/services/notifications/test/unit/js/NotificationsControllerTest.js
+++ b/services/notifications/test/unit/js/NotificationsControllerTest.js
@@ -11,8 +11,6 @@
  * Full docs: https://github.com/decaffeinate/decaffeinate/blob/master/docs/suggestions.md
  */
 const sinon = require('sinon')
-const chai = require('chai')
-const should = chai.should()
 const modulePath = '../../../app/js/NotificationsController.js'
 const SandboxedModule = require('sandboxed-module')
 const assert = require('assert')
@@ -27,7 +25,6 @@ describe('Notifications Controller', function () {
     this.notifications = {}
     this.controller = SandboxedModule.require(modulePath, {
       requires: {
-        'logger-sharelatex': { log() {} },
         './Notifications': this.notifications,
         '@overleaf/metrics': {
           inc: sinon.stub()
diff --git a/services/notifications/test/unit/js/NotificationsTests.js b/services/notifications/test/unit/js/NotificationsTests.js
index 426aa706da..7d2b89a26e 100644
--- a/services/notifications/test/unit/js/NotificationsTests.js
+++ b/services/notifications/test/unit/js/NotificationsTests.js
@@ -13,9 +13,7 @@
  * Full docs: https://github.com/decaffeinate/decaffeinate/blob/master/docs/suggestions.md
  */
 const sinon = require('sinon')
-const chai = require('chai')
-const expect = chai.should
-const should = chai.should()
+const { expect } = require('chai')
 const modulePath = '../../../app/js/Notifications.js'
 const SandboxedModule = require('sandboxed-module')
 const assert = require('assert')
@@ -43,16 +41,9 @@ describe('Notifications Tests', function () {
 
     this.notifications = SandboxedModule.require(modulePath, {
       requires: {
-        'logger-sharelatex': {
-          log() {},
-          error() {}
-        },
         'settings-sharelatex': {},
         './mongodb': { db: this.db, ObjectId },
         '@overleaf/metrics': { timeAsyncMethod: sinon.stub() }
-      },
-      globals: {
-        console
       }
     })
 
@@ -109,7 +100,7 @@ describe('Notifications Tests', function () {
         user_id,
         this.stubbedNotification,
         (err) => {
-          expect(err).not.exists
+          expect(err).not.to.exist
           sinon.assert.calledWith(
             this.updateOneStub,
             this.expectedQuery,
@@ -131,7 +122,7 @@ describe('Notifications Tests', function () {
           user_id,
           this.stubbedNotification,
           (err) => {
-            expect(err).not.exists
+            expect(err).not.to.exist
             sinon.assert.notCalled(this.updateOneStub)
             return done()
           }
@@ -144,7 +135,7 @@ describe('Notifications Tests', function () {
           user_id,
           this.stubbedNotification,
           (err) => {
-            expect(err).not.exists
+            expect(err).not.to.exist
             sinon.assert.calledWith(
               this.updateOneStub,
               this.expectedQuery,
@@ -184,7 +175,7 @@ describe('Notifications Tests', function () {
           user_id,
           this.stubbedNotification,
           (err) => {
-            expect(err).not.exists
+            expect(err).not.to.exist
             sinon.assert.calledWith(
               this.updateOneStub,
               this.expectedQuery,