diff --git a/docs/cookbook.md b/docs/cookbook.md
index 2205af6e..53b73cc3 100644
--- a/docs/cookbook.md
+++ b/docs/cookbook.md
@@ -25,9 +25,9 @@
                     <span style="font-weight: normal;">
                         apply coupon for discount: 
                     </span>
-                    266B9C51C90B3728782E
+                    07860559FF2298EF51E7
                 </div>
-                <button style="margin: 0 auto; display: block; width: 200px; height: 70px; border-radius: 14px; border: none; padding: 10px; font-size: 18px; background-color: #357296; color: white; cursor: pointer;" onclick="window.open('https://www.udemy.com/course/pysimplegui/?couponCode=266B9C51C90B3728782E','_blank');">
+                <button style="margin: 0 auto; display: block; width: 200px; height: 70px; border-radius: 14px; border: none; padding: 10px; font-size: 18px; background-color: #357296; color: white; cursor: pointer;" onclick="window.open('https://www.udemy.com/course/pysimplegui/?couponCode=07860559FF2298EF51E7','_blank');">
                     click here to visit course page
                 </button>
             </div>
diff --git a/docs/index.md b/docs/index.md
index b851cf66..0b954e7f 100644
--- a/docs/index.md
+++ b/docs/index.md
@@ -25,9 +25,9 @@
                     <span style="font-weight: normal;">
                         apply coupon for discount: 
                     </span>
-                    266B9C51C90B3728782E
+                    07860559FF2298EF51E7
                 </div>
-                <button style="margin: 0 auto; display: block; width: 200px; height: 70px; border-radius: 14px; border: none; padding: 10px; font-size: 18px; background-color: #357296; color: white; cursor: pointer;" onclick="window.open('https://www.udemy.com/course/pysimplegui/?couponCode=266B9C51C90B3728782E','_blank');">
+                <button style="margin: 0 auto; display: block; width: 200px; height: 70px; border-radius: 14px; border: none; padding: 10px; font-size: 18px; background-color: #357296; color: white; cursor: pointer;" onclick="window.open('https://www.udemy.com/course/pysimplegui/?couponCode=07860559FF2298EF51E7','_blank');">
                     click here to visit course page
                 </button>
             </div>
diff --git a/docs/readme.md b/docs/readme.md
index bb87045c..740737f9 100644
--- a/docs/readme.md
+++ b/docs/readme.md
@@ -9,8 +9,8 @@
       <img src="https://www.dropbox.com/s/6wzf3ebmj97v4zs/PySimpleGUI-GitHub-Udemy-Course.png?raw=1" width=200 alt="PySimpleGUI Udemy Course">
     </td>
     <td>
-      <h5>apply coupon for discount:<br>266B9C51C90B3728782E</h6>
-      <a href="https://www.udemy.com/course/pysimplegui/?couponCode=266B9C51C90B3728782E">click here to visit course page</a>
+      <h5>apply coupon for discount:<br>07860559FF2298EF51E7</h6>
+      <a href="https://www.udemy.com/course/pysimplegui/?couponCode=07860559FF2298EF51E7">click here to visit course page</a>
     </td>
   </tr>
 </table>
diff --git a/readme.md b/readme.md
index bb87045c..740737f9 100644
--- a/readme.md
+++ b/readme.md
@@ -9,8 +9,8 @@
       <img src="https://www.dropbox.com/s/6wzf3ebmj97v4zs/PySimpleGUI-GitHub-Udemy-Course.png?raw=1" width=200 alt="PySimpleGUI Udemy Course">
     </td>
     <td>
-      <h5>apply coupon for discount:<br>266B9C51C90B3728782E</h6>
-      <a href="https://www.udemy.com/course/pysimplegui/?couponCode=266B9C51C90B3728782E">click here to visit course page</a>
+      <h5>apply coupon for discount:<br>07860559FF2298EF51E7</h6>
+      <a href="https://www.udemy.com/course/pysimplegui/?couponCode=07860559FF2298EF51E7">click here to visit course page</a>
     </td>
   </tr>
 </table>
diff --git a/readme_creator/markdown input files/1_HEADER_top_part.md b/readme_creator/markdown input files/1_HEADER_top_part.md
index 502b40f0..c7ba309d 100644
--- a/readme_creator/markdown input files/1_HEADER_top_part.md	
+++ b/readme_creator/markdown input files/1_HEADER_top_part.md	
@@ -52,9 +52,9 @@ HOW DO I INSERT IMAGES ???
                     <span style="font-weight: normal;">
                         apply coupon for discount: 
                     </span>
-                    266B9C51C90B3728782E
+                    07860559FF2298EF51E7
                 </div>
-                <button style="margin: 0 auto; display: block; width: 200px; height: 70px; border-radius: 14px; border: none; padding: 10px; font-size: 18px; background-color: #357296; color: white; cursor: pointer;" onclick="window.open('https://www.udemy.com/course/pysimplegui/?couponCode=266B9C51C90B3728782E','_blank');">
+                <button style="margin: 0 auto; display: block; width: 200px; height: 70px; border-radius: 14px; border: none; padding: 10px; font-size: 18px; background-color: #357296; color: white; cursor: pointer;" onclick="window.open('https://www.udemy.com/course/pysimplegui/?couponCode=07860559FF2298EF51E7','_blank');">
                     click here to visit course page
                 </button>
             </div>
diff --git a/readme_creator/output/index.md b/readme_creator/output/index.md
index b851cf66..0b954e7f 100644
--- a/readme_creator/output/index.md
+++ b/readme_creator/output/index.md
@@ -25,9 +25,9 @@
                     <span style="font-weight: normal;">
                         apply coupon for discount: 
                     </span>
-                    266B9C51C90B3728782E
+                    07860559FF2298EF51E7
                 </div>
-                <button style="margin: 0 auto; display: block; width: 200px; height: 70px; border-radius: 14px; border: none; padding: 10px; font-size: 18px; background-color: #357296; color: white; cursor: pointer;" onclick="window.open('https://www.udemy.com/course/pysimplegui/?couponCode=266B9C51C90B3728782E','_blank');">
+                <button style="margin: 0 auto; display: block; width: 200px; height: 70px; border-radius: 14px; border: none; padding: 10px; font-size: 18px; background-color: #357296; color: white; cursor: pointer;" onclick="window.open('https://www.udemy.com/course/pysimplegui/?couponCode=07860559FF2298EF51E7','_blank');">
                     click here to visit course page
                 </button>
             </div>