diff --git a/CHANGELOG.md b/CHANGELOG.md
index cabc5085..c429ab64 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -10,6 +10,8 @@ Note: In this file, do not use the hard wrap in the middle of a sentence for com
 
 ## [Unreleased]
 
+- Update `martin@latest` to 1.4.0.
+
 ## [2.68.31] - 2026-03-15
 
 - Update `cargo-shear@latest` to 1.11.2.
diff --git a/manifests/martin.json b/manifests/martin.json
index a3b67a11..afb48222 100644
--- a/manifests/martin.json
+++ b/manifests/martin.json
@@ -32,10 +32,31 @@
   },
   "license_markdown": "[MIT](https://github.com/maplibre/martin/blob/main/LICENSE-MIT) OR [Apache-2.0](https://github.com/maplibre/martin/blob/main/LICENSE-APACHE)",
   "latest": {
-    "version": "1.3.1"
+    "version": "1.4.0"
   },
   "1": {
-    "version": "1.3.1"
+    "version": "1.4.0"
+  },
+  "1.4": {
+    "version": "1.4.0"
+  },
+  "1.4.0": {
+    "x86_64_linux_musl": {
+      "etag": "0x8DE8289D41A741D",
+      "checksum": "fbeb563a8a53f1268786d70c0ed2a1e5c7e8142f76168b0b1d07cb6e694ebbfd"
+    },
+    "x86_64_macos": {
+      "etag": "0x8DE8289D41BAB3C",
+      "checksum": "3b42f618cd8d4364690553ad09e7ce9ac2fc548fb9905840720f21efb7c0ed19"
+    },
+    "aarch64_linux_musl": {
+      "etag": "0x8DE8289D4002BCF",
+      "checksum": "7e148b4d79dd1ac0e7f6f3e637ac7ae03d287663e0c4204724ef3a2894560442"
+    },
+    "aarch64_macos": {
+      "etag": "0x8DE8289D4282055",
+      "checksum": "3a9107d8960cc03c21f52474f520798cf7c784ee53cda9aadbe83828ab1323e1"
+    }
   },
   "1.3": {
     "version": "1.3.1"