diff --git a/changelog.txt b/changelog.txt
index 437dec2..7d34862 100644
--- a/changelog.txt
+++ b/changelog.txt
@@ -4,6 +4,7 @@ Version 0.2.9 (2018-06-)
 - Added ENFORCE_BASEPATH option (Issue #68) @danielperna84
 - Cosmetic fix for scaled viewports @danielperna84
 - Added search-function for entities (Issue #99) @danielperna84
+- Updated Ace Editor to 1.3.3
 
 Version 0.2.8 (2018-04-23)
 - Updated CDN libraries @jmart518
diff --git a/configurator.py b/configurator.py
index 8955175..ec8d008 100755
--- a/configurator.py
+++ b/configurator.py
@@ -578,9 +578,9 @@ INDEX = Template(r"""<!DOCTYPE html>
             height: auto;
         }
     </style>
-    <script src="https://cdnjs.cloudflare.com/ajax/libs/ace/1.2.9/ace.js" type="text/javascript" charset="utf-8"></script>
-    <script src="https://cdnjs.cloudflare.com/ajax/libs/ace/1.2.9/ext-modelist.js" type="text/javascript" charset="utf-8"></script>
-    <script src="https://cdnjs.cloudflare.com/ajax/libs/ace/1.2.9/ext-language_tools.js" type="text/javascript" charset="utf-8"></script>
+    <script src="https://cdnjs.cloudflare.com/ajax/libs/ace/1.3.3/ace.js" type="text/javascript" charset="utf-8"></script>
+    <script src="https://cdnjs.cloudflare.com/ajax/libs/ace/1.3.3/ext-modelist.js" type="text/javascript" charset="utf-8"></script>
+    <script src="https://cdnjs.cloudflare.com/ajax/libs/ace/1.3.3/ext-language_tools.js" type="text/javascript" charset="utf-8"></script>
 </head>
 <body>
   <div class="preloader-background">
@@ -2107,7 +2107,7 @@ INDEX = Template(r"""<!DOCTYPE html>
                   <input id="wrap_limit" type="number" onchange="editor.setOption('wrap', parseInt(this.value))" min="1" value="80">
                   <label class="active" for="wrap_limit">Wrap Limit</label>
               </div> <a class="waves-effect waves-light btn light-blue" onclick="save_ace_settings()">Save Settings Locally</a>
-              <p class="center col s12"> Ace Editor 1.2.9 </p>
+              <p class="center col s12"> Ace Editor 1.3.3 </p>
           </div>
         </ul>
       </div>
diff --git a/dev.html b/dev.html
index cb186ce..b984947 100644
--- a/dev.html
+++ b/dev.html
@@ -488,9 +488,9 @@
             height: auto;
         }
     </style>
-    <script src="https://cdnjs.cloudflare.com/ajax/libs/ace/1.2.9/ace.js" type="text/javascript" charset="utf-8"></script>
-    <script src="https://cdnjs.cloudflare.com/ajax/libs/ace/1.2.9/ext-modelist.js" type="text/javascript" charset="utf-8"></script>
-    <script src="https://cdnjs.cloudflare.com/ajax/libs/ace/1.2.9/ext-language_tools.js" type="text/javascript" charset="utf-8"></script>
+    <script src="https://cdnjs.cloudflare.com/ajax/libs/ace/1.3.3/ace.js" type="text/javascript" charset="utf-8"></script>
+    <script src="https://cdnjs.cloudflare.com/ajax/libs/ace/1.3.3/ext-modelist.js" type="text/javascript" charset="utf-8"></script>
+    <script src="https://cdnjs.cloudflare.com/ajax/libs/ace/1.3.3/ext-language_tools.js" type="text/javascript" charset="utf-8"></script>
 </head>
 <body>
   <div class="preloader-background">
@@ -2017,7 +2017,7 @@
                   <input id="wrap_limit" type="number" onchange="editor.setOption('wrap', parseInt(this.value))" min="1" value="80">
                   <label class="active" for="wrap_limit">Wrap Limit</label>
               </div> <a class="waves-effect waves-light btn light-blue" onclick="save_ace_settings()">Save Settings Locally</a>
-              <p class="center col s12"> Ace Editor 1.2.9 </p>
+              <p class="center col s12"> Ace Editor 1.3.3 </p>
           </div>
         </ul>
       </div>
