diff --git a/packages/string-templates/test/basic.spec.js b/packages/string-templates/test/basic.spec.ts
similarity index 99%
rename from packages/string-templates/test/basic.spec.js
rename to packages/string-templates/test/basic.spec.ts
index 0b78e3cafd..e096a3fe45 100644
--- a/packages/string-templates/test/basic.spec.js
+++ b/packages/string-templates/test/basic.spec.ts
@@ -8,7 +8,7 @@ const {
   doesContainString,
   disableEscaping,
   findHBSBlocks,
-} = require("../src/index.js")
+} = require("../src/index")
 
 describe("Test that the string processing works correctly", () => {
   it("should process a basic template string", async () => {
diff --git a/packages/string-templates/test/constants.js b/packages/string-templates/test/constants.ts
similarity index 72%
rename from packages/string-templates/test/constants.js
rename to packages/string-templates/test/constants.ts
index aac0291636..b9e31bcfcc 100644
--- a/packages/string-templates/test/constants.js
+++ b/packages/string-templates/test/constants.ts
@@ -1,2 +1,2 @@
-module.exports.UUID_REGEX =
+export const UUID_REGEX =
   /^[0-9A-F]{8}-[0-9A-F]{4}-4[0-9A-F]{3}-[89AB][0-9A-F]{3}-[0-9A-F]{12}$/i
diff --git a/packages/string-templates/test/escapes.spec.js b/packages/string-templates/test/escapes.spec.ts
similarity index 100%
rename from packages/string-templates/test/escapes.spec.js
rename to packages/string-templates/test/escapes.spec.ts
diff --git a/packages/string-templates/test/hbsToJs.spec.js b/packages/string-templates/test/hbsToJs.spec.ts
similarity index 100%
rename from packages/string-templates/test/hbsToJs.spec.js
rename to packages/string-templates/test/hbsToJs.spec.ts
diff --git a/packages/string-templates/test/helpers.spec.js b/packages/string-templates/test/helpers.spec.ts
similarity index 98%
rename from packages/string-templates/test/helpers.spec.js
rename to packages/string-templates/test/helpers.spec.ts
index 86fef538d3..0207ee5568 100644
--- a/packages/string-templates/test/helpers.spec.js
+++ b/packages/string-templates/test/helpers.spec.ts
@@ -1,7 +1,7 @@
-const { processString, processObject, isValid } = require("../src/index.js")
-const tableJson = require("./examples/table.json")
-const dayjs = require("dayjs")
-const { UUID_REGEX } = require("./constants")
+import { processString, processObject, isValid } from "../src/index"
+import tableJson from "./examples/table.json"
+import dayjs from "dayjs"
+import { UUID_REGEX } from "./constants"
 
 describe("test the custom helpers we have applied", () => {
   it("should be able to use the object helper", async () => {
diff --git a/packages/string-templates/test/javascript.spec.js b/packages/string-templates/test/javascript.spec.ts
similarity index 99%
rename from packages/string-templates/test/javascript.spec.js
rename to packages/string-templates/test/javascript.spec.ts
index 0e9f196da6..3c9524e165 100644
--- a/packages/string-templates/test/javascript.spec.js
+++ b/packages/string-templates/test/javascript.spec.ts
@@ -4,7 +4,7 @@ const {
   processStringSync,
   encodeJSBinding,
   setJSRunner,
-} = require("../src/index.js")
+} = require("../src/index")
 const { UUID_REGEX } = require("./constants")
 
 const processJS = (js, context) => {
diff --git a/packages/string-templates/test/manifest.spec.js b/packages/string-templates/test/manifest.spec.ts
similarity index 96%
rename from packages/string-templates/test/manifest.spec.js
rename to packages/string-templates/test/manifest.spec.ts
index 81183f13c9..cd2041f5d2 100644
--- a/packages/string-templates/test/manifest.spec.js
+++ b/packages/string-templates/test/manifest.spec.ts
@@ -17,7 +17,7 @@ jest.mock("@budibase/handlebars-helpers/lib/uuid", () => {
   }
 })
 
-const { processString, setJSRunner } = require("../src/index.js")
+const { processString, setJSRunner } = require("../src/index")
 
 const tk = require("timekeeper")
 const { getParsedManifest, runJsHelpersTests } = require("./utils")
diff --git a/packages/string-templates/test/renderApp.spec.js b/packages/string-templates/test/renderApp.spec.ts
similarity index 94%
rename from packages/string-templates/test/renderApp.spec.js
rename to packages/string-templates/test/renderApp.spec.ts
index 582e70701f..f09bc1c2b9 100644
--- a/packages/string-templates/test/renderApp.spec.js
+++ b/packages/string-templates/test/renderApp.spec.ts
@@ -1,4 +1,4 @@
-const { processString } = require("../src/index.js")
+const { processString } = require("../src/index")
 
 describe("specific test case for whether or not full app template can still be rendered", () => {
   it("should be able to render the app template", async () => {
diff --git a/packages/string-templates/test/utils.js b/packages/string-templates/test/utils.ts
similarity index 100%
rename from packages/string-templates/test/utils.js
rename to packages/string-templates/test/utils.ts
diff --git a/packages/string-templates/test/vm.spec.js b/packages/string-templates/test/vm.spec.ts
similarity index 100%
rename from packages/string-templates/test/vm.spec.js
rename to packages/string-templates/test/vm.spec.ts