diff --git a/book.json b/book.json
index 16ded28..d39e780 100644
--- a/book.json
+++ b/book.json
@@ -8,7 +8,8 @@
     "anchors",
     "collapsible-chapters",
     "hide-published-with",
-    "hints"
+    "hints",
+    "search-pro-fixed"
   ],
   "pdf.fontSize": 16,
   "pdf.fontFamily": "ZenMaruGothic",
diff --git a/package.json b/package.json
index c6b0e3d..e614e88 100644
--- a/package.json
+++ b/package.json
@@ -16,6 +16,7 @@
     "gitbook-plugin-collapsible-chapters": "^0.1.8",
     "gitbook-plugin-hide-published-with": "^0.0.1",
     "gitbook-plugin-hints": "^1.0.2",
+    "gitbook-plugin-search-pro-fixed": "^1.0.1",
     "graceful-fs": "^4.2.11",
     "honkit": "^5.1.1",
     "npm-run-all": "^4.1.5"
diff --git a/pnpm-lock.yaml b/pnpm-lock.yaml
index 5df6d80..72983b9 100644
--- a/pnpm-lock.yaml
+++ b/pnpm-lock.yaml
@@ -17,6 +17,9 @@ devDependencies:
   gitbook-plugin-hints:
     specifier: ^1.0.2
     version: 1.0.2
+  gitbook-plugin-search-pro-fixed:
+    specifier: ^1.0.1
+    version: 1.0.1
   graceful-fs:
     specifier: ^4.2.11
     version: 4.2.11
@@ -816,6 +819,13 @@ packages:
       lunr: 0.5.12
     dev: true
 
+  /gitbook-plugin-search-pro-fixed@1.0.1:
+    resolution: {integrity: sha512-X6pBgfN54D3Ij+iF4cw44PZCdOvjnqboEoi0bsolEYPzcJOXFiiemxYt+rit95T8UbSaML38o8SCPzl9grM/zA==}
+    engines: {gitbook: '>=3.0.0'}
+    dependencies:
+      html-entities: 1.2.0
+    dev: true
+
   /gitbook-plugin-search@2.2.1:
     resolution: {integrity: sha512-oP9jhaKFUVPo756G9ywuuI43YdkZClSjfpFzNKe/a/Rcn3oVsrAM/PjdQ+dt65KfZVo3iW1LY4WdiZnNqzRP8g==}
     engines: {gitbook: '>=3.0.0-pre.0'}