diff --git a/docs/windows/index.html b/docs/windows/index.html
index b3f9ae1..cd240b7 100644
--- a/docs/windows/index.html
+++ b/docs/windows/index.html
@@ -50,6 +50,49 @@ <h1>OpenSlide Windows development builds</h1>
     <th colspan="3">Downloads</th>
   </tr>
   
+    <tr>
+      <td class="date">2023-08-18</td>
+      <td class="revision">
+        
+  
+    743eabc0
+  
+
+      </td>
+      <td class="revision">
+        
+  
+    743758a7
+  
+
+      </td>
+      <td class="revision">
+        
+  
+    <a href="https://github.com/openslide/openslide-winbuild/compare/94f89577...ff4f8c6d">
+      ff4f8c6d
+    </a>
+  
+
+      </td>
+      <td class="spacer"></td>
+      <td class="win32">
+        <a href="https://github.com/openslide/builds/releases/download/windows-20230818-nightly/openslide-win32-20230818-nightly.zip">
+          32-bit
+        </a>
+      </td>
+      <td class="win64">
+        <a href="https://github.com/openslide/builds/releases/download/windows-20230818-nightly/openslide-win64-20230818-nightly.zip">
+          64-bit
+        </a>
+      </td>
+      <td class="winbuild">
+        <a href="https://github.com/openslide/builds/releases/download/windows-20230818-nightly/openslide-winbuild-20230818-nightly.zip">
+          Corresponding sources
+        </a>
+      </td>
+    </tr>
+  
     <tr>
       <td class="date">2023-08-16</td>
       <td class="revision">
@@ -1277,9 +1320,7 @@ <h1>OpenSlide Windows development builds</h1>
       <td class="revision">
         
   
-    <a href="https://github.com/openslide/openslide/compare/b1099178...ca84a78e">
-      ca84a78e
-    </a>
+    ca84a78e
   
 
       </td>
@@ -1315,45 +1356,4 @@ <h1>OpenSlide Windows development builds</h1>
       </td>
     </tr>
   
-    <tr>
-      <td class="date">2023-05-13</td>
-      <td class="revision">
-        
-  
-    b1099178
-  
-
-      </td>
-      <td class="revision">
-        
-  
-    743758a7
-  
-
-      </td>
-      <td class="revision">
-        
-  
-    2b609d07
-  
-
-      </td>
-      <td class="spacer"></td>
-      <td class="win32">
-        <a href="https://github.com/openslide/builds/releases/download/windows-20230513-nightly/openslide-win32-20230513-nightly.zip">
-          32-bit
-        </a>
-      </td>
-      <td class="win64">
-        <a href="https://github.com/openslide/builds/releases/download/windows-20230513-nightly/openslide-win64-20230513-nightly.zip">
-          64-bit
-        </a>
-      </td>
-      <td class="winbuild">
-        <a href="https://github.com/openslide/builds/releases/download/windows-20230513-nightly/openslide-winbuild-20230513-nightly.zip">
-          Corresponding sources
-        </a>
-      </td>
-    </tr>
-  
 </table>
diff --git a/docs/windows/index.json b/docs/windows/index.json
index 5dabd3b..d21a1fe 100644
--- a/docs/windows/index.json
+++ b/docs/windows/index.json
@@ -1,12 +1,5 @@
 {
   "builds": [
-    {
-      "date": "2023-05-13",
-      "openslide": "b10991789f975c36c5d66d95e09200ac702d2a6d",
-      "openslide-java": "743758a7ff043a8c075834c1b8d240969d025448",
-      "openslide-winbuild": "2b609d07c691527dc932ddea0f521ded8e828cbc",
-      "pkgver": "20230513-nightly"
-    },
     {
       "date": "2023-05-14",
       "openslide": "ca84a78eff0b6d7312f6496e872ca84fa9b1dba5",
@@ -209,7 +202,14 @@
       "openslide-java": "743758a7ff043a8c075834c1b8d240969d025448",
       "openslide-winbuild": "94f895770653b1eab7e66dd9d2daea21f09ba17b",
       "pkgver": "20230816-nightly"
+    },
+    {
+      "date": "2023-08-18",
+      "openslide": "743eabc08b70a8f860a0ea530e54e81f74f03826",
+      "openslide-java": "743758a7ff043a8c075834c1b8d240969d025448",
+      "openslide-winbuild": "ff4f8c6dd8bb1a5a5cc8a8a2b0086de5119954e5",
+      "pkgver": "20230818-nightly"
     }
   ],
-  "last_update": 1692149469
+  "last_update": 1692322235
 }