diff --git a/Dockerfile b/Dockerfile
new file mode 100644
index 0000000..c39f69a
--- /dev/null
+++ b/Dockerfile
@@ -0,0 +1,7 @@
+FROM node:20
+
+COPY ./src /app
+WORKDIR /app
+RUN npm install
+
+CMD node app.js
\ No newline at end of file
diff --git a/docker-compose.yml b/docker-compose.yml
new file mode 100644
index 0000000..989ae16
--- /dev/null
+++ b/docker-compose.yml
@@ -0,0 +1,7 @@
+version: "3.9"
+services:
+  app:
+    build:
+      context: .
+    ports:
+      - 8080:8080
\ No newline at end of file
diff --git a/src/app.js b/src/app.js
index 3d30938..8dc7c84 100755
--- a/src/app.js
+++ b/src/app.js
@@ -236,7 +236,7 @@ let handlers = [
       let user = conn.session.get('user')
       let uid = conn.session.get('id')
       let htmlParams = {}
-      let params = qs.parse(conn.location.search.substring(1))
+      let params = qs.parse(conn.location.search?.substring(1))
       let q = params.q || ''
       let sql
 
diff --git a/src/package.json b/src/package.json
index 3eabcde..b5392e7 100755
--- a/src/package.json
+++ b/src/package.json
@@ -12,7 +12,7 @@
   "author": "Yosuke HASEGAWA",
   "license": "MIT",
   "dependencies": {
-    "libxmljs": "^0.18.7",
-    "sqlite3": "^3.1.8"
+    "libxmljs": "^1.0.11",
+    "sqlite3": "^5.1.7"
   }
 }