diff --git a/CONTRIBUTING.md b/CONTRIBUTING.md
index c6796dd0b..0e00c3f2c 100644
--- a/CONTRIBUTING.md
+++ b/CONTRIBUTING.md
@@ -58,7 +58,7 @@ If your skill is specialized, community-contributed, or niche, it's better suite
 | **Git** | With `--recurse-submodules` support, and the `git-lfs` extension installed |
 | **Python 3.11+** | uv will install it if missing |
 | **uv** | Fast Python package manager ([install](https://docs.astral.sh/uv/)) |
-| **Node.js 20+** | Optional — needed for browser tools and WhatsApp bridge |
+| **Node.js 20+** | Optional — needed for browser tools and WhatsApp bridge (matches root `package.json` engines) |
 
 ### Clone and install
 
diff --git a/website/docs/developer-guide/contributing.md b/website/docs/developer-guide/contributing.md
index 8920e32ec..f75fd85eb 100644
--- a/website/docs/developer-guide/contributing.md
+++ b/website/docs/developer-guide/contributing.md
@@ -35,7 +35,7 @@ We value contributions in this order:
 | **Git** | With `--recurse-submodules` support, and the `git-lfs` extension installed |
 | **Python 3.11+** | uv will install it if missing |
 | **uv** | Fast Python package manager ([install](https://docs.astral.sh/uv/)) |
-| **Node.js 18+** | Optional — needed for browser tools and WhatsApp bridge |
+| **Node.js 20+** | Optional — needed for browser tools and WhatsApp bridge (matches root `package.json` engines) |
 
 ### Clone and Install