diff --git a/changelog.md b/changelog.md
index 3cb0447..3870a0f 100644
--- a/changelog.md
+++ b/changelog.md
@@ -10,6 +10,11 @@ Since [ECharts](https://echarts.apache.org/) is the main dependency of this
 application, major version changes in ECharts will also trigger a major version
 change in this application.
 
+## Version 5.1.1 (2024-03-16)
+
+* __[maintenance]__
+Update dependency `nan` to 2.19.0.
+
 ## Version 5.1.0 (2024-02-20)
 
 * __[improvement]__
diff --git a/export-server/package-lock.json b/export-server/package-lock.json
index f4d6893..ada970a 100644
--- a/export-server/package-lock.json
+++ b/export-server/package-lock.json
@@ -1,6 +1,6 @@
 {
   "name": "echarts-node-export-server",
-  "version": "5.1.0",
+  "version": "5.1.1",
   "lockfileVersion": 1,
   "requires": true,
   "dependencies": {
@@ -283,9 +283,9 @@
       "integrity": "sha512-sGkPx+VjMtmA6MX27oA4FBFELFCZZ4S4XqeGOXCv68tT+jb3vk/RyaKWP0PTKyWtmLSM0b+adUTEvbs1PEaH2w=="
     },
     "nan": {
-      "version": "2.18.0",
-      "resolved": "https://registry.npmjs.org/nan/-/nan-2.18.0.tgz",
-      "integrity": "sha512-W7tfG7vMOGtD30sHoZSSc/JVYiyDPEyQVso/Zz+/uQd0B0L46gtC+pHha5FFMRpil6fm/AoEcRWyOVi4+E/f8w=="
+      "version": "2.19.0",
+      "resolved": "https://registry.npmjs.org/nan/-/nan-2.19.0.tgz",
+      "integrity": "sha512-nO1xXxfh/RWNxfd/XPfbIfFk5vgLsAxUR9y5O0cHMJu/AW9U95JLXqthYHjEp+8gQ5p96K9jUp8nbVOxCdRbtw=="
     },
     "node-fetch": {
       "version": "2.7.0",
diff --git a/export-server/package.json b/export-server/package.json
index 5e7ee35..62d9117 100644
--- a/export-server/package.json
+++ b/export-server/package.json
@@ -1,6 +1,6 @@
 {
   "name": "echarts-node-export-server",
-  "version": "5.1.0",
+  "version": "5.1.1",
   "description": "ECharts Node.js export server",
   "repository": {
     "url": "https://gitlab.com/striezel/echarts-node-export-server.git",