diff --git a/index.bs b/index.bs
index 9cc45b7b..a1cfa516 100644
--- a/index.bs
+++ b/index.bs
@@ -159,6 +159,10 @@ After several weeks, she has developed a tiny DNN model that can even run on
 CPU. In order to accommodate CPU execution, she modifies the application
 so that the application loads the tiny model in the case of CPU-only devices.
 
+<h2 id="acknowledgements">Acknowledgements</h2>
+
+Thanks to Tomoyuki Shimizu, Ningxin Hu, and Zhiqiang Yu for the use cases.
+
 <pre class="biblio">
 {
   "SSD": {
diff --git a/index.html b/index.html
index 5148a755..c6f2b5d8 100644
--- a/index.html
+++ b/index.html
@@ -1212,9 +1212,9 @@
 		}
 	}
 </style>
-  <meta content="Bikeshed version db559f98d6c99655936abc96647a0e88ba98a9cf" name="generator">
+  <meta content="Bikeshed version 0da7328bb90ef81993146377e4e0fed236969c4c" name="generator">
   <link href="https://webmachinelearning.github.io/webnn/" rel="canonical">
-  <meta content="f46f10701f2c2ff59725ae71d5a53702f1106f4b" name="document-revision">
+  <meta content="d4ba82b053578b7ba447e537ff5b24ea568122af" name="document-revision">
 <style>/* style-md-lists */
 
 /* This is a weird hack for me not yet following the commonmark spec
@@ -1366,7 +1366,7 @@
   <div class="head">
    <p data-fill-with="logo"></p>
    <h1 class="p-name no-ref" id="title">Web Neural Network API</h1>
-   <h2 class="no-num no-toc no-ref heading settled" id="subtitle"><span class="content">Draft Community Group Report, <time class="dt-updated" datetime="2018-12-18">18 December 2018</time></span></h2>
+   <h2 class="no-num no-toc no-ref heading settled" id="subtitle"><span class="content">Draft Community Group Report, <time class="dt-updated" datetime="2018-12-21">21 December 2018</time></span></h2>
    <div data-fill-with="spec-metadata">
     <dl>
      <dt>This version:
@@ -1428,6 +1428,7 @@ <h2 class="no-num no-toc no-ref" id="contents">Table of Contents</h2>
         <li><a href="#usecase-perf-adapt"><span class="secno">2.2.3</span> <span class="content">Performance Adaptation</span></a>
        </ol>
      </ol>
+    <li><a href="#acknowledgements"><span class="secno">3</span> <span class="content">Acknowledgements</span></a>
     <li><a href="#conformance"><span class="secno"></span> <span class="content"> Conformance</span></a>
     <li>
      <a href="#references"><span class="secno"></span> <span class="content">References</span></a>
@@ -1544,6 +1545,8 @@ <h4 class="heading settled" data-level="2.2.3" id="usecase-perf-adapt"><span cla
    <p>After several weeks, she has developed a tiny DNN model that can even run on
 CPU. In order to accommodate CPU execution, she modifies the application
 so that the application loads the tiny model in the case of CPU-only devices.</p>
+   <h2 class="heading settled" data-level="3" id="acknowledgements"><span class="secno">3. </span><span class="content">Acknowledgements</span><a class="self-link" href="#acknowledgements"></a></h2>
+   <p>Thanks to Tomoyuki Shimizu, Ningxin Hu, and Zhiqiang Yu for the use cases.</p>
   </main>
   <div data-fill-with="conformance">
    <h2 class="no-ref no-num heading settled" id="conformance"><span class="content"> Conformance</span><a class="self-link" href="#conformance"></a></h2>