diff --git a/javascript_client/package-lock.json b/javascript_client/package-lock.json
index c14448c022..f82037f419 100644
--- a/javascript_client/package-lock.json
+++ b/javascript_client/package-lock.json
@@ -19,9 +19,9 @@
         "@apollo/client": ">=3.3.13",
         "@rails/actioncable": "^7.0.0",
         "@types/glob": "^7.1.1",
-        "@types/jest": "^25.1.2",
+        "@types/jest": "^25.2.3",
         "@types/minimist": "^1.2.0",
-        "@types/node": "^18.0.0",
+        "@types/node": "^18.19.130",
         "@types/pako": "^1.0.1",
         "@types/pusher-js": "^4.2.2",
         "@types/rails__actioncable": "^6.1.6",
@@ -36,8 +36,9 @@
         "prettier": "^1.19.1",
         "pusher-js": "^7.0.3",
         "relay-runtime": "11.0.2",
+        "rxjs": "^7.8.2",
         "ts-jest": "^29.0.0",
-        "typescript": "5.3.3",
+        "typescript": ">=5.3.3",
         "urql": "^2.2.2"
       },
       "engines": {
@@ -4563,6 +4564,16 @@
         "url": "https://github.com/sponsors/sindresorhus"
       }
     },
+    "node_modules/rxjs": {
+      "version": "7.8.2",
+      "resolved": "https://registry.npmjs.org/rxjs/-/rxjs-7.8.2.tgz",
+      "integrity": "sha512-dhKf903U/PQZY6boNNtAGdWbG85WAbjT/1xYoZIC7FAY0yWapOBQVsVrDl58W86//e1VpMNBtRV4MaXfdMySFA==",
+      "dev": true,
+      "license": "Apache-2.0",
+      "dependencies": {
+        "tslib": "^2.1.0"
+      }
+    },
     "node_modules/semver": {
       "version": "7.5.4",
       "resolved": "https://registry.npmjs.org/semver/-/semver-7.5.4.tgz",
diff --git a/javascript_client/package.json b/javascript_client/package.json
index 5a2056f5ab..aa379b06e9 100644
--- a/javascript_client/package.json
+++ b/javascript_client/package.json
@@ -71,9 +71,9 @@
     "@apollo/client": ">=3.3.13",
     "@rails/actioncable": "^7.0.0",
     "@types/glob": "^7.1.1",
-    "@types/jest": "^25.1.2",
+    "@types/jest": "^25.2.3",
     "@types/minimist": "^1.2.0",
-    "@types/node": "^18.0.0",
+    "@types/node": "^18.19.130",
     "@types/pako": "^1.0.1",
     "@types/pusher-js": "^4.2.2",
     "@types/rails__actioncable": "^6.1.6",
@@ -88,8 +88,9 @@
     "prettier": "^1.19.1",
     "pusher-js": "^7.0.3",
     "relay-runtime": "11.0.2",
+    "rxjs": "^7.8.2",
     "ts-jest": "^29.0.0",
-    "typescript": "5.3.3",
+    "typescript": ">=5.3.3",
     "urql": "^2.2.2"
   },
   "scripts": {
diff --git a/javascript_client/src/__tests__/cliTest.ts b/javascript_client/src/__tests__/cliTest.ts
index b476cdb73b..321843b834 100644
--- a/javascript_client/src/__tests__/cliTest.ts
+++ b/javascript_client/src/__tests__/cliTest.ts
@@ -14,13 +14,13 @@ describe("CLI", () => {
 
   it("runs with some options", () => {
     var buffer = childProcess.execSync("node ./cli.js sync --client=something --header=Abcd:efgh --header=\"Abc: 123 45\" --changeset-version=2023-01-01 --mode=file --path=\"**/doc1.graphql\" --verbose", {stdio: "pipe"})
-    var response = buffer.toString().replace(/\033\[[0-9;]*m/g, "")
+    var response = buffer.toString().replace(/\x1b\[[0-9;]*m/g, "")
     expect(response).toEqual("No URL; Generating artifacts without syncing them\n[Sync] glob:  **/doc1.graphql\n[Sync] 1 files:\n[Sync]   - src/__tests__/documents/doc1.graphql\nGenerating client module in src/OperationStoreClient.js...\n✓ Done!\n")
   })
 
   it("runs with just one header", () => {
     var buffer = childProcess.execSync("node ./cli.js sync --client=something --header=Ab-cd:ef-gh --mode=file --path=\"**/doc1.graphql\"", {stdio: "pipe"})
-    var response = buffer.toString().replace(/\033\[[0-9;]*m/g, "")
+    var response = buffer.toString().replace(/\x1b\[[0-9;]*m/g, "")
     expect(response).toEqual("No URL; Generating artifacts without syncing them\nGenerating client module in src/OperationStoreClient.js...\n✓ Done!\n")
   })
 
@@ -42,7 +42,7 @@ describe("CLI", () => {
 
   it("writes to stdout", () => {
     let buffer = childProcess.execSync("node ./cli.js sync --client=something --header=Ab-cd:ef-gh --dump-payload --path=\"**/doc1.graphql\"", {stdio: "pipe"})
-    let dumpedJSON = buffer.toString().replace(/\033\[[0-9;]*m/g, "")
+    let dumpedJSON = buffer.toString().replace(/\x1b\[[0-9;]*m/g, "")
     expect(dumpedJSON).toEqual(`{
   "operations": [
     {
diff --git a/javascript_client/src/__tests__/esmTest.ts b/javascript_client/src/__tests__/esmTest.ts
index a6b0254cb9..88f14fc435 100644
--- a/javascript_client/src/__tests__/esmTest.ts
+++ b/javascript_client/src/__tests__/esmTest.ts
@@ -2,7 +2,7 @@ var childProcess = require("child_process")
 
 function runCommand(commandStr: string) {
   var buffer = childProcess.execSync(commandStr, {stdio: "pipe"})
-  return buffer.toString().replace(/\033\[[0-9;]*m/g, "")
+  return buffer.toString().replace(/\x1b\[[0-9;]*m/g, "")
 }
 describe("ESM build", () => {
   beforeAll(() => {
diff --git a/javascript_client/tsconfig.json b/javascript_client/tsconfig.json
index 88634cf02f..86f30fd95b 100644
--- a/javascript_client/tsconfig.json
+++ b/javascript_client/tsconfig.json
@@ -63,6 +63,7 @@
     // "emitDecoratorMetadata": true,         /* Enables experimental support for emitting type metadata for decorators. */
 
     /* Advanced Options */
-    "forceConsistentCasingInFileNames": true  /* Disallow inconsistently-cased references to the same file. */
-  }
+    "forceConsistentCasingInFileNames": true,  /* Disallow inconsistently-cased references to the same file. */
+    "types": ["node", "jest"]
+  },
 }