diff --git a/package.json b/package.json
index a70c3f1..e778f23 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@barchart/common-js",
-  "version": "4.29.0",
+  "version": "4.29.1",
   "description": "Library of common JavaScript utilities",
   "author": {
     "name": "Bryan Ingle",
diff --git a/test/SpecRunner.js b/test/SpecRunner.js
index a20d93d..353f154 100644
--- a/test/SpecRunner.js
+++ b/test/SpecRunner.js
@@ -5606,11 +5606,26 @@ module.exports = (() => {
         if (!(milliseconds > 0)) {
           return Promise.reject('Unable to configure promise timeout, the "milliseconds" argument must be positive');
         }
-        return Promise.race([promise, this.build((resolveCallback, rejectCallback) => {
-          setTimeout(() => {
+        let timeoutToken = null;
+        const timeoutPromise = this.build((resolveCallback, rejectCallback) => {
+          timeoutToken = setTimeout(() => {
             rejectCallback(description || `Promise timed out after ${milliseconds} milliseconds`);
           }, milliseconds);
-        })]);
+        });
+        const userPromise = Promise.resolve().then(() => {
+          return promise;
+        }).then(result => {
+          if (timeoutToken !== null) {
+            clearTimeout(timeoutToken);
+          }
+          return result;
+        }).catch(e => {
+          if (timeoutToken !== null) {
+            clearTimeout(timeoutToken);
+          }
+          return Promise.reject(e);
+        });
+        return Promise.race([userPromise, timeoutPromise]);
       });
     },
     /**