diff --git a/subprojects/gst-docs/meson.build b/subprojects/gst-docs/meson.build
index e6320daf73..888e57618b 100644
--- a/subprojects/gst-docs/meson.build
+++ b/subprojects/gst-docs/meson.build
@@ -101,7 +101,7 @@ sitemap = configure_file(command: [sitemap_gen, '@INPUT@', '@OUTPUT@',
   input: 'sitemap.txt',
   output: 'sitemap.txt')
 
-html_theme = 'https://github.com/hotdoc/hotdoc_lumen_theme/releases/download/0.13.2/hotdoc_lumen_theme-0.13.2.tar.xz?sha256=5721189b7e985f27381ee20137f4a9003049a70a75ab1221a69fd04d27e752bc'
+html_theme = 'https://github.com/hotdoc/hotdoc_lumen_theme/releases/download/0.15/hotdoc_lumen_theme-0.15.tar.xz?sha256=1ea7fd00d8dfd607d175c59e2d89918a55114c867f697a94c703f314b0d9b4b6'
 
 gstreamer_doc = hotdoc.generate_doc('GStreamer',
     project_version: apiversion,