diff --git a/public/index.html b/public/index.html
index 0fdf96ea6..9a84f3ae8 100644
--- a/public/index.html
+++ b/public/index.html
@@ -3045,6 +3045,7 @@
                                         <option value="gemini-1.0-ultra-latest">Gemini 1.0 Ultra</option>
                                     </optgroup>
                                     <optgroup label="Subversions">
+                                        <option value="gemini-2.0-flash-thinking-exp-1219">Gemini 2.0 Flash Thinking Experimental</option>
                                         <option value="gemini-2.0-flash-exp">Gemini 2.0 Flash Experimental</option>
                                         <option value="gemini-exp-1114">Gemini Experimental 2024-11-14</option>
                                         <option value="gemini-exp-1121">Gemini Experimental 2024-11-21</option>