diff --git a/v4/README.md b/v4/README.md
index c25bfb71..f7866350 100644
--- a/v4/README.md
+++ b/v4/README.md
@@ -1,7 +1,7 @@
 # Bilberry Hugo Theme v4
 
 [![GitHub version](https://img.shields.io/github/release/Lednerb/bilberry-hugo-theme/all.svg?style=flat-square)](https://github.com/Lednerb/bilberry-hugo-theme/releases)
-[![Hugo Version](https://img.shields.io/badge/Hugo-%5E0.125.7-ff4088?style=flat-square&logo=hugo)](https://gohugo.io/)
+[![Hugo Version](https://img.shields.io/badge/Hugo-%5E0.139.4-ff4088?style=flat-square&logo=hugo)](https://gohugo.io/)
 [![Hugo Themes](https://img.shields.io/badge/Hugo_Themes-@Bilberry-ff4088)](https://themes.gohugo.io/themes/bilberry-hugo-theme/)
 
 [![Build GH-Pages](https://github.com/Lednerb/bilberry-hugo-theme/workflows/Update%20GitHub%20Pages/badge.svg)](https://github.com/Lednerb/bilberry-hugo-theme/deployments/activity_log?environment=github-pages)
@@ -114,7 +114,7 @@ Please use the following guidelines if you want to start a discussion:
 
 ## Requirements
 
-- **Hugo** (version >= 0.125.7 **extended**), see this [guide](https://gohugo.io/getting-started/installing/) on how to install Hugo.
+- **Hugo** (version >= 0.139.4 **extended**), see this [guide](https://gohugo.io/getting-started/installing/) on how to install Hugo.
 - **Git**, see this [guide](https://git-scm.com/book/en/v2/Getting-Started-Installing-Git) on how to install Git.
 - **Go** (version >= 1.21), optional, required only when the Bilberry theme is used as a Hugo module; see
   this [guide](https://go.dev/doc/install) on how to install Go.
diff --git a/v4/config.toml b/v4/config.toml
index 31ae451a..a62c9ae5 100644
--- a/v4/config.toml
+++ b/v4/config.toml
@@ -1,3 +1,3 @@
 [module]
   [module.hugoVersion]
-    min = "0.125.7"
+    min = "0.139.4"
diff --git a/v4/go.mod b/v4/go.mod
index cf7576a6..398aab14 100644
--- a/v4/go.mod
+++ b/v4/go.mod
@@ -1,3 +1,3 @@
 module github.com/Lednerb/bilberry-hugo-theme/v4
 
-go 1.21
+go 1.22.6
diff --git a/v4/package-lock.json b/v4/package-lock.json
index 96631cdd..5fcf7489 100644
--- a/v4/package-lock.json
+++ b/v4/package-lock.json
@@ -16,7 +16,7 @@
         "cross-env": "^6.0.3",
         "dimbox": "^1.0.2",
         "flexslider": "^2.7.2",
-        "hugo-extended": "^0.125.7",
+        "hugo-extended": "^0.139.4",
         "instantsearch.js": "^4.39.1",
         "jquery": "^3.5.1",
         "moment": "^2.29.4",
@@ -1154,11 +1154,12 @@
       }
     },
     "node_modules/hugo-extended": {
-      "version": "0.125.7",
-      "resolved": "https://registry.npmjs.org/hugo-extended/-/hugo-extended-0.125.7.tgz",
-      "integrity": "sha512-zK4rsDWDJ5RDm+lfD3v4ypREIufOvSQKn/waB5PKTaAP9Ky5olei/M9uPLvWZ8h1OkiQ4Gg/+6QXJjndNCPxrQ==",
+      "version": "0.139.4",
+      "resolved": "https://registry.npmjs.org/hugo-extended/-/hugo-extended-0.139.4.tgz",
+      "integrity": "sha512-OZUzlduFCV1FMiqP341QbgFoOVrAUph0N1d3dDBVeuX+aWuIvtdxIcosaLVgFVe3HLGina+y1IWh34Q/7Frvfg==",
       "dev": true,
       "hasInstallScript": true,
+      "license": "MIT",
       "dependencies": {
         "careful-downloader": "^3.0.0",
         "log-symbols": "^5.1.0",
@@ -1169,7 +1170,7 @@
         "hugo-extended": "lib/cli.js"
       },
       "engines": {
-        "node": ">=14.14"
+        "node": ">=16.14"
       }
     },
     "node_modules/ieee754": {
@@ -3467,9 +3468,9 @@
       }
     },
     "hugo-extended": {
-      "version": "0.125.7",
-      "resolved": "https://registry.npmjs.org/hugo-extended/-/hugo-extended-0.125.7.tgz",
-      "integrity": "sha512-zK4rsDWDJ5RDm+lfD3v4ypREIufOvSQKn/waB5PKTaAP9Ky5olei/M9uPLvWZ8h1OkiQ4Gg/+6QXJjndNCPxrQ==",
+      "version": "0.139.4",
+      "resolved": "https://registry.npmjs.org/hugo-extended/-/hugo-extended-0.139.4.tgz",
+      "integrity": "sha512-OZUzlduFCV1FMiqP341QbgFoOVrAUph0N1d3dDBVeuX+aWuIvtdxIcosaLVgFVe3HLGina+y1IWh34Q/7Frvfg==",
       "dev": true,
       "requires": {
         "careful-downloader": "^3.0.0",
diff --git a/v4/package.json b/v4/package.json
index e22ff723..ee473376 100644
--- a/v4/package.json
+++ b/v4/package.json
@@ -4,7 +4,7 @@
   "description": "Bilberry Hugo theme",
   "dependencies": {},
   "devDependencies": {
-    "hugo-extended": "^0.125.7",
+    "hugo-extended": "^0.139.4",
     "clipboard": "^2.0.6",
     "dimbox": "^1.0.2",
     "normalize.css": "^8.0.1",
diff --git a/v4/v4-developer-guide.md b/v4/v4-developer-guide.md
index 979b1167..d87222a7 100644
--- a/v4/v4-developer-guide.md
+++ b/v4/v4-developer-guide.md
@@ -1,10 +1,10 @@
 ## v4 Developer Guide
 
 ### Prerequisites
-- **Hugo** (version >= 0.109.0 **extended**), see this installation [guide](https://gohugo.io/getting-started/installing/).
+- **Hugo** (version >= 0.139.4 **extended**), see this installation [guide](https://gohugo.io/getting-started/installing/).
 - **Git**, see this installation [guide](https://git-scm.com/book/en/v2/Getting-Started-Installing-Git).
-- **Go** (version >= 1.19), see this installation [guide](https://go.dev/doc/install).
-- **Node.js** (version >= 20.5.0) with **npm** (version >= 9.8.0), see this
+- **Go** (version >= 1.22.6), see this installation [guide](https://go.dev/doc/install).
+- **Node.js** (version >= v23.6.1) with **npm** (version >= 10.9.2), see this
   installation [guide](https://docs.npmjs.com/downloading-and-installing-node-js-and-npm).
 
 ### Third-party Dependencies
diff --git a/v4/v4-migration-guide.md b/v4/v4-migration-guide.md
index e3b25992..8f161d8e 100644
--- a/v4/v4-migration-guide.md
+++ b/v4/v4-migration-guide.md
@@ -1,6 +1,6 @@
 ## v4 Migration Guide
 
-**IMPORTANT** The Hugo version was bumped to `v0.125.7 extended`. Therefore, you should upgrade Hugo in your local
+**IMPORTANT** The Hugo version was bumped to `v0.139.4 extended`. Therefore, you should upgrade Hugo in your local
 development environment and, if necessary, in the corresponding deployment configuration file.
 
 ### Site Configuration File