diff --git a/.github/workflows/gh-pages.yml b/.github/workflows/gh-pages.yml
index fbf0848..ff822c0 100644
--- a/.github/workflows/gh-pages.yml
+++ b/.github/workflows/gh-pages.yml
@@ -2,16 +2,17 @@ name: github pages
 
 on:
   push:
+  workflow_dispatch:
 
 # Lookup compatible version numbers at: https://github.com/lzanini/mdbook-katex/releases
 env:
-  mdbook-version: '0.4.37'
-  katex-version: '0.5.9'
+  mdbook-version: '0.4.40'
+  katex-version: '0.9.0'
   linkcheck-version: '0.7.7'
 
 jobs:
   deploy:
-    runs-on: ubuntu-22.04
+    runs-on: ubuntu-24.04
     concurrency:
       group: ${{ github.workflow }}-${{ github.ref }}
     steps:
@@ -21,7 +22,7 @@ jobs:
         uses: dsaltares/fetch-gh-release-asset@master
         with:
           repo: lzanini/mdbook-katex
-          version: tags/v${{env.katex-version}}
+          version: tags/${{env.katex-version}}-binaries
           file: "mdbook-katex-v${{env.katex-version}}-x86_64-unknown-linux-gnu.tar.gz"
           token: ${{ secrets.GITHUB_TOKEN }}
 
@@ -42,7 +43,7 @@ jobs:
           chmod +x /usr/local/bin/mdbook-linkcheck
 
       - name: Setup mdBook
-        uses: peaceiris/actions-mdbook@v1
+        uses: peaceiris/actions-mdbook@v2
         with:
           mdbook-version: ${{env.mdbook-version}}
 
diff --git a/.github/workflows/manual-deploy.yml b/.github/workflows/manual-deploy.yml
deleted file mode 100644
index 9c9c08e..0000000
--- a/.github/workflows/manual-deploy.yml
+++ /dev/null
@@ -1,57 +0,0 @@
-name: manual deploy github pages
-
-on:
-  workflow_dispatch:
-
-# Lookup compatible version numbers at: https://github.com/lzanini/mdbook-katex/releases
-env:
-  mdbook-version: '0.4.37'
-  katex-version: '0.5.9'
-  linkcheck-version: '0.7.7'
-
-jobs:
-  deploy:
-    runs-on: ubuntu-22.04
-    concurrency:
-      group: ${{ github.workflow }}-${{ github.ref }}
-    steps:
-      - uses: actions/checkout@v3
-
-      - name: Fetch mdbook-katex
-        uses: dsaltares/fetch-gh-release-asset@master
-        with:
-          repo: lzanini/mdbook-katex
-          version: tags/v${{env.katex-version}}
-          file: "mdbook-katex-v${{env.katex-version}}-x86_64-unknown-linux-gnu.tar.gz"
-          token: ${{ secrets.GITHUB_TOKEN }}
-
-      - name: Install mdbook-katex
-        run: tar -xvf mdbook-katex-v${{env.katex-version}}-x86_64-unknown-linux-gnu.tar.gz -C /usr/local/bin
-
-      - name: Fetch mdbook-linkcheck
-        uses: dsaltares/fetch-gh-release-asset@master
-        with:
-          repo: Michael-F-Bryan/mdbook-linkcheck
-          version: tags/v${{env.linkcheck-version}}
-          file: "mdbook-linkcheck.x86_64-unknown-linux-gnu.zip"
-          token: ${{ secrets.GITHUB_TOKEN }}
-
-      - name: Install mdbook-linkcheck
-        run: |
-          unzip mdbook-linkcheck.x86_64-unknown-linux-gnu.zip -d /usr/local/bin
-          chmod +x /usr/local/bin/mdbook-linkcheck
-
-      - name: Setup mdBook
-        uses: peaceiris/actions-mdbook@v1
-        with:
-          mdbook-version: ${{env.mdbook-version}}
-
-      - run: mdbook build
-
-      - name: Deploy
-        uses: peaceiris/actions-gh-pages@v3
-        with:
-          github_token: ${{ secrets.GITHUB_TOKEN }}
-          publish_dir: ./book/html/
-          allow_empty_commit: true
-          cname: docs.tlsnotary.org
diff --git a/README.md b/README.md
index 7395c6d..033cc4f 100644
--- a/README.md
+++ b/README.md
@@ -5,8 +5,8 @@
 Install mdbook and mdbook-katex
 
 ```bash
-cargo install mdbook --version 0.4.37
-cargo install mdbook-katex --version 0.7.0
+cargo install mdbook --version 0.4.40
+cargo install mdbook-katex --version 0.9.0
 cargo install mdbook-linkcheck
 ```
 
diff --git a/theme/update_theme.rs b/theme/update_theme.rs
index 94de719..c67ff68 100755
--- a/theme/update_theme.rs
+++ b/theme/update_theme.rs
@@ -1,8 +1,8 @@
 #!/usr/bin/env cargo +nightly -Zscript
-```cargo
+---
 [dependencies]
 reqwest = { version = "0.11", features = ["blocking"] }
-```
+---
 
 // This script fetches the 'index.hbs' file from the mdBook repository and filters the
 // content to only present the 'ayu' theme.
@@ -11,7 +11,7 @@ use reqwest::blocking;
 use std::fs::File;
 use std::io::{self, Write};
 
-const MDBOOK_VERSION: &str = "0.4.37";
+const MDBOOK_VERSION: &str = "0.4.40";
 
 fn main() -> io::Result<()> {
     let url = format!(