diff --git a/1-js/06-advanced-functions/09-call-apply-decorators/article.md b/1-js/06-advanced-functions/09-call-apply-decorators/article.md
index 685832e0..bec5639f 100644
--- a/1-js/06-advanced-functions/09-call-apply-decorators/article.md
+++ b/1-js/06-advanced-functions/09-call-apply-decorators/article.md
@@ -106,7 +106,7 @@ alert( worker.slow(1) ); // the original method works
 worker.slow = cachingDecorator(worker.slow); // now make it caching
 
 *!*
-alert( worker.slow(2) ); // WOOPS! Error: Cannot read property 'someMethod' of undefined
+alert( worker.slow(2) ); // Whoops! Error: Cannot read property 'someMethod' of undefined
 */!*
 ```
 
diff --git a/10-regular-expressions/08-regexp-greedy-and-lazy/article.md b/10-regular-expressions/08-regexp-greedy-and-lazy/article.md
index 79f2c890..11b9cbc7 100644
--- a/10-regular-expressions/08-regexp-greedy-and-lazy/article.md
+++ b/10-regular-expressions/08-regexp-greedy-and-lazy/article.md
@@ -218,7 +218,7 @@ alert( str.match(reg) ); // <a href="link" class="doc">
 let str = '...<a href="link1" class="doc">... <a href="link2" class="doc">...';
 let reg = /<a href=".*" class="doc">/g;
 
-// Woops! Two links in one match!
+// Whoops! Two links in one match!
 alert( str.match(reg) ); // <a href="link1" class="doc">... <a href="link2" class="doc">
 ```
 
diff --git a/8-async/02-promise-basics/article.md b/8-async/02-promise-basics/article.md
index 1f9fa5a5..d20c9f99 100644
--- a/8-async/02-promise-basics/article.md
+++ b/8-async/02-promise-basics/article.md
@@ -44,7 +44,7 @@ Or, in case of an error:
 ```js
 let promise = new Promise(function(resolve, *!*reject*/!*) {
   // after 1 second signal that the job is finished with an error
-  setTimeout(() => reject(new Error("Woops!")), 1000);
+  setTimeout(() => reject(new Error("Whoops!")), 1000);
 });
 ```
 
@@ -82,10 +82,10 @@ promise.then(result => alert(result));
 
 ```js run
 let promise = new Promise(function(resolve, reject) {
-  setTimeout(() => reject(new Error("Woops!")), 1000);
+  setTimeout(() => reject(new Error("Whoops!")), 1000);
 });
 
-// shows "Woops!" after 1 second
+// shows "Whoops!" after 1 second
 promise.catch(error => alert(error.message));
 ```
 
diff --git a/8-async/03-promise-chaining/article.md b/8-async/03-promise-chaining/article.md
index c518a872..ddfb4c2e 100644
--- a/8-async/03-promise-chaining/article.md
+++ b/8-async/03-promise-chaining/article.md
@@ -212,9 +212,9 @@ For instance:
 
 ```js run
 new Promise(function(resolve, reject) {
-  throw new Error("Woops!");
+  throw new Error("Whoops!");
 }).catch(function(error) {
-  alert(error.message); // Whoops
+  alert(error.message); // Whoops!
 });
 
 ## Inheriting from promise, thenables, error handling?
@@ -248,11 +248,11 @@ new Promise(function(resolve, reject) {
   setTimeout(() => resolve(1), 1000);
 }).then(function(result) {
 
-  throw new Error("Woops!");
+  throw new Error("Whoops!");
 
 }).catch(function(error) {
 
-  alert(error.message); // Woops!
+  alert(error.message); // Whoops!
 
 });
 ```