diff --git a/.changeset/serious-spiders-argue.md b/.changeset/serious-spiders-argue.md
new file mode 100644
index 000000000..806019a5e
--- /dev/null
+++ b/.changeset/serious-spiders-argue.md
@@ -0,0 +1,5 @@
+---
+"@onflow/fcl": patch
+---
+
+Fix return type for fcl.mutate
diff --git a/package-lock.json b/package-lock.json
index 1427d34db..2cd29e9fc 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -24133,11 +24133,11 @@
     },
     "packages/config": {
       "name": "@onflow/config",
-      "version": "1.1.0-alpha.5",
+      "version": "1.1.0-alpha.6",
       "license": "Apache-2.0",
       "dependencies": {
         "@babel/runtime": "^7.18.6",
-        "@onflow/util-actor": "^1.2.0-alpha.0",
+        "@onflow/util-actor": "^1.2.0-alpha.1",
         "eslint": "^8.34.0",
         "eslint-plugin-jsdoc": "^40.0.0"
       },
@@ -35217,11 +35217,11 @@
     },
     "packages/util-actor": {
       "name": "@onflow/util-actor",
-      "version": "1.2.0-alpha.0",
+      "version": "1.2.0-alpha.1",
       "license": "Apache-2.0",
       "dependencies": {
         "@babel/runtime": "^7.18.6",
-        "queue-microtask": "^1.2.3"
+        "queue-microtask": "1.2.3"
       },
       "devDependencies": {
         "@onflow/fcl-bundle": "^1.3.0-alpha.0",
@@ -44983,7 +44983,7 @@
       "requires": {
         "@babel/runtime": "^7.18.6",
         "@onflow/fcl-bundle": "^1.3.0-alpha.0",
-        "@onflow/util-actor": "^1.2.0-alpha.0",
+        "@onflow/util-actor": "^1.2.0-alpha.1",
         "eslint": "^8.34.0",
         "eslint-plugin-jsdoc": "^40.0.0",
         "jest": "25.3.0",
@@ -53046,7 +53046,7 @@
         "@onflow/fcl-bundle": "^1.3.0-alpha.0",
         "jest": "26.4.0",
         "jest-esm-transformer": "1.0.0",
-        "queue-microtask": "^1.2.3"
+        "queue-microtask": "1.2.3"
       },
       "dependencies": {
         "@jest/console": {
diff --git a/packages/fcl/src/exec/mutate.js b/packages/fcl/src/exec/mutate.js
index 162450556..6c763eb1f 100644
--- a/packages/fcl/src/exec/mutate.js
+++ b/packages/fcl/src/exec/mutate.js
@@ -14,7 +14,7 @@ import {isNumber} from "./utils/is"
  *  @param {import("../fcl").ArgsFn} [opts.args] - Arguments passed to cadence transaction
  *  @param {object} [opts.template] - Interaction Template for a transaction
  *  @param {number} [opts.limit] - Compute Limit for transaction
- *  @returns {string} Transaction Id
+ *  @returns {Promise<string>} Transaction Id
  *
  * @example
  *    fcl.mutate({