diff --git a/docs/index.html b/docs/index.html
index fbcad1f..e28e5a3 100755
--- a/docs/index.html
+++ b/docs/index.html
@@ -440,16 +440,21 @@ <h2 class="title is-4"> Safe Control of Quadruped in Varying
       </div>
     </section>
 
-    <!-- <section class="section" id="BibTeX">
+    <section class="section" id="BibTeX">
       <div class="container content">
         <h2 class="titile">BibTeX</h2>
         <pre>
           <code>
-            ??
+            @misc{sun2025spark,
+              title        = {SPARK: A Toolbox for Safe Humanoid Autonomy and Teleoperation},
+              author       = {Sun, Yifan and Chen, Rui and Yun, Kai S. and Fang, Yikuan and Jung, Sebin and Zhao, Weiye and Liu, Changliu},
+              year         = {2025},
+              howpublished = {\url{https://intelligent-control-lab.github.io/spark/}}
+            }
           </code>
         </pre>
       </div>
-    </section> -->
+    </section>
 
     <footer class="footer">
       <div class="container">