diff --git a/package-lock.json b/package-lock.json
index 046018eba32..01ebc592421 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -112,7 +112,7 @@
         "raw-loader": "^4.0.2",
         "rollup-plugin-webpack-stats": "^1.1.1",
         "ts-jest": "^29.2.5",
-        "typescript": "^5.6.3",
+        "typescript": "^5.7.2",
         "vite": "^5.4.11",
         "vite-plugin-commonjs": "^0.10.4",
         "vue-demi": "^0.14.10",
@@ -26824,9 +26824,9 @@
       "peer": true
     },
     "node_modules/typescript": {
-      "version": "5.6.3",
-      "resolved": "https://registry.npmjs.org/typescript/-/typescript-5.6.3.tgz",
-      "integrity": "sha512-hjcS1mhfuyi4WW8IWtjP7brDrG2cuDZukyrYrSauoXGNgx0S7zceP07adYkJycEr56BOUTNPzbInooiN3fn1qw==",
+      "version": "5.7.2",
+      "resolved": "https://registry.npmjs.org/typescript/-/typescript-5.7.2.tgz",
+      "integrity": "sha512-i5t66RHxDvVN40HfDd1PsEThGNnlMCMT3jMUuoh9/0TaqWevNontacunWyN02LA9/fIbEWlcHZcgTKb9QoaLfg==",
       "license": "Apache-2.0",
       "bin": {
         "tsc": "bin/tsc",
@@ -47220,9 +47220,9 @@
       "requires": {}
     },
     "typescript": {
-      "version": "5.6.3",
-      "resolved": "https://registry.npmjs.org/typescript/-/typescript-5.6.3.tgz",
-      "integrity": "sha512-hjcS1mhfuyi4WW8IWtjP7brDrG2cuDZukyrYrSauoXGNgx0S7zceP07adYkJycEr56BOUTNPzbInooiN3fn1qw=="
+      "version": "5.7.2",
+      "resolved": "https://registry.npmjs.org/typescript/-/typescript-5.7.2.tgz",
+      "integrity": "sha512-i5t66RHxDvVN40HfDd1PsEThGNnlMCMT3jMUuoh9/0TaqWevNontacunWyN02LA9/fIbEWlcHZcgTKb9QoaLfg=="
     },
     "typescript-event-target": {
       "version": "1.1.1",
diff --git a/package.json b/package.json
index d95ac10a499..083f986fd7a 100644
--- a/package.json
+++ b/package.json
@@ -140,7 +140,7 @@
     "raw-loader": "^4.0.2",
     "rollup-plugin-webpack-stats": "^1.1.1",
     "ts-jest": "^29.2.5",
-    "typescript": "^5.6.3",
+    "typescript": "^5.7.2",
     "vite": "^5.4.11",
     "vite-plugin-commonjs": "^0.10.4",
     "vue-demi": "^0.14.10",
diff --git a/src/helpers/base64.ts b/src/helpers/base64.ts
index b91b151e026..780423024d2 100644
--- a/src/helpers/base64.ts
+++ b/src/helpers/base64.ts
@@ -26,6 +26,6 @@ export function encodeArrayBuffer(data: ArrayBuffer): string {
  *
  * @param {string} encoded - base64 encoded string to decode
  */
-export function decodeArrayBuffer(encoded: string): ArrayBuffer {
+export function decodeArrayBuffer(encoded: string): Uint8Array {
 	return fromBase64(encoded)
 }
diff --git a/src/services/Outbox.ts b/src/services/Outbox.ts
index c6301f9c547..aeb2bbbe0d8 100644
--- a/src/services/Outbox.ts
+++ b/src/services/Outbox.ts
@@ -16,7 +16,7 @@ export default class Outbox {
 	#syncUpdate = ''
 	#syncQuery = ''
 
-	storeStep(step: Uint8Array) {
+	storeStep(step: ArrayBuffer) {
 		const encoded = encodeArrayBuffer(step)
 		if (encoded < 'AAA' || encoded > 'Ag') {
 			logger.warn('Unexpected step type:', { step, encoded })