diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 4fd6a6ff..bfa4f19d 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -117,11 +117,6 @@ jobs:
             nodejs_version_major: 20
             platform: win32-ia32
             package: true
-          - os: windows-2022
-            nodejs_arch: x86
-            nodejs_version: "22.21.0"
-            nodejs_version_major: 22
-            platform: win32-ia32
           - os: windows-2022
             nodejs_arch: x64
             nodejs_version: "^20.9.0"
diff --git a/docs/src/content/docs/changelog/v0.35.0.md b/docs/src/content/docs/changelog/v0.35.0.md
index 0a07281f..de234244 100644
--- a/docs/src/content/docs/changelog/v0.35.0.md
+++ b/docs/src/content/docs/changelog/v0.35.0.md
@@ -16,6 +16,8 @@ slug: changelog/v0.35.0
 
 * Upgrade to libvips v8.18.0 for upstream bug fixes.
 
+* Deprecate Windows 32-bit (win32-ia32) prebuilt binaries.
+
 * Add `withGainMap` to process HDR JPEG images with embedded gain maps.
   [#4314](https://github.com/lovell/sharp/issues/4314)
 
diff --git a/docs/src/content/docs/install.md b/docs/src/content/docs/install.md
index d2eaa720..285ae20d 100644
--- a/docs/src/content/docs/install.md
+++ b/docs/src/content/docs/install.md
@@ -50,8 +50,8 @@ Ready-compiled sharp and libvips binaries are provided for use on the most commo
 * Linux s390x (glibc >= 2.36)
 * Linux x64 (glibc >= 2.26, musl >= 1.2.2, CPU with SSE4.2)
 * Windows x64
-* Windows x86
-* Windows ARM64 (experimental, CPU with ARMv8.4 required for all features)
+* Windows x86 (deprecated, Node.js 20 only)
+* Windows ARM64 (CPU with ARMv8.4 required for all features)
 
 This provides support for the
 JPEG, PNG, WebP, AVIF (limited to 8-bit depth), TIFF, GIF and SVG (input) image formats.
diff --git a/npm/win32-ia32/package.json b/npm/win32-ia32/package.json
index 67277556..ec53304d 100644
--- a/npm/win32-ia32/package.json
+++ b/npm/win32-ia32/package.json
@@ -1,7 +1,7 @@
 {
   "name": "@img/sharp-win32-ia32",
   "version": "0.34.5",
-  "description": "Prebuilt sharp for use with Windows x86 (32-bit)",
+  "description": "Prebuilt sharp for use with Windows x86 (deprecated)",
   "author": "Lovell Fuller <npm@lovell.info>",
   "homepage": "https://sharp.pixelplumbing.com",
   "repository": {
@@ -29,7 +29,7 @@
     "./versions": "./versions.json"
   },
   "engines": {
-    "node": ">=20.9.0"
+    "node": "^20.9.0"
   },
   "os": [
     "win32"