diff --git a/packages/string-templates/test/javascript.spec.js b/packages/string-templates/test/javascript.spec.js
index 851b2ced30..0e9f196da6 100644
--- a/packages/string-templates/test/javascript.spec.js
+++ b/packages/string-templates/test/javascript.spec.js
@@ -14,13 +14,6 @@ const processJS = (js, context) => {
 describe("Javascript", () => {
   beforeAll(() => {
     setJSRunner((js, context) => {
-      context = {
-        ...context,
-        alert: undefined,
-        setInterval: undefined,
-        setTimeout: undefined,
-      }
-      vm.createContext(context)
       return vm.runInNewContext(js, context, { timeout: 1000 })
     })
   })
diff --git a/packages/string-templates/test/manifest.spec.js b/packages/string-templates/test/manifest.spec.js
index c276b1333d..81183f13c9 100644
--- a/packages/string-templates/test/manifest.spec.js
+++ b/packages/string-templates/test/manifest.spec.js
@@ -1,3 +1,5 @@
+const vm = require("vm")
+
 jest.mock("@budibase/handlebars-helpers/lib/math", () => {
   const actual = jest.requireActual("@budibase/handlebars-helpers/lib/math")
 
@@ -15,7 +17,7 @@ jest.mock("@budibase/handlebars-helpers/lib/uuid", () => {
   }
 })
 
-const { processString } = require("../src/index.js")
+const { processString, setJSRunner } = require("../src/index.js")
 
 const tk = require("timekeeper")
 const { getParsedManifest, runJsHelpersTests } = require("./utils")
@@ -29,6 +31,12 @@ function escapeRegExp(string) {
 describe("manifest", () => {
   const manifest = getParsedManifest()
 
+  beforeAll(() => {
+    setJSRunner((js, context) => {
+      return vm.runInNewContext(js, context, { timeout: 1000 })
+    })
+  })
+
   describe("examples are valid", () => {
     describe.each(Object.keys(manifest))("%s", collection => {
       it.each(manifest[collection])("%s", async (_, { hbs, js }) => {