diff --git a/README.md b/README.md
index 3c1935881..818cbe5e5 100644
--- a/README.md
+++ b/README.md
@@ -732,10 +732,10 @@ SOFTWARE.
 [appdaemon-armhf-shield]: https://img.shields.io/badge/armhf-yes-green.svg
 [appdaemon-armv7-shield]: https://img.shields.io/badge/armv7-yes-green.svg
 [appdaemon-i386-shield]: https://img.shields.io/badge/i386-yes-green.svg
-[addon-bookstack]: https://github.com/hassio-addons/addon-bookstack/tree/4d9da83
-[addon-doc-bookstack]: https://github.com/hassio-addons/addon-bookstack/blob/4d9da83/README.md
+[addon-bookstack]: https://github.com/hassio-addons/addon-bookstack/tree/fc3912c
+[addon-doc-bookstack]: https://github.com/hassio-addons/addon-bookstack/blob/fc3912c/README.md
 [bookstack-issue]: https://github.com/hassio-addons/addon-bookstack/issues
-[bookstack-version-shield]: https://img.shields.io/badge/version-4d9da83-blue.svg
+[bookstack-version-shield]: https://img.shields.io/badge/version-fc3912c-blue.svg
 [bookstack-aarch64-shield]: https://img.shields.io/badge/aarch64-yes-green.svg
 [bookstack-amd64-shield]: https://img.shields.io/badge/amd64-yes-green.svg
 [bookstack-armhf-shield]: https://img.shields.io/badge/armhf-yes-green.svg
diff --git a/bookstack/CHANGELOG.md b/bookstack/CHANGELOG.md
index 3c9559f5a..4de8bae72 100644
--- a/bookstack/CHANGELOG.md
+++ b/bookstack/CHANGELOG.md
@@ -1,3 +1,4 @@
 # Changelog since v0.13.7
+- ⬆️ Update bookstack to v21.12.1 (#170) 
 - 🎉 Mark Production Ready (#169) 
 - 📚 Update Year 🎉 (#168) 
diff --git a/bookstack/README.md b/bookstack/README.md
index fdee0e654..2ae51c366 100644
--- a/bookstack/README.md
+++ b/bookstack/README.md
@@ -42,6 +42,6 @@ If you are more interested in stable releases of our add-ons:
 [forum]: https://community.home-assistant.io/?u=frenck
 [maintenance-shield]: https://img.shields.io/maintenance/yes/2022.svg
 [project-stage-shield]: https://img.shields.io/badge/project%20stage-production%20ready-brightgreen.svg
-[release-shield]: https://img.shields.io/badge/version-4d9da83-blue.svg
-[release]: https://github.com/hassio-addons/addon-bookstack/tree/4d9da83
+[release-shield]: https://img.shields.io/badge/version-fc3912c-blue.svg
+[release]: https://github.com/hassio-addons/addon-bookstack/tree/fc3912c
 [screenshot]: https://github.com/hassio-addons/addon-bookstack/raw/main/images/screenshot.png
\ No newline at end of file
diff --git a/bookstack/config.json b/bookstack/config.json
index 6496acaab..c99dab712 100644
--- a/bookstack/config.json
+++ b/bookstack/config.json
@@ -1,6 +1,6 @@
 {
   "name": "Bookstack",
-  "version": "4d9da83",
+  "version": "fc3912c",
   "slug": "bookstack",
   "description": "Simple & Free Wiki Software",
   "url": "https://github.com/hassio-addons/addon-bookstack",