diff --git a/CHANGELOG.md b/CHANGELOG.md
index a8dbb5b7..162bb484 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 `cargo-lambda@latest` to 1.4.0.
+
 - Update `cargo-binstall@latest` to 1.10.4.
 
 ## [2.43.0] - 2024-09-06
diff --git a/manifests/cargo-lambda.json b/manifests/cargo-lambda.json
index 654b52f8..2f0fc5aa 100644
--- a/manifests/cargo-lambda.json
+++ b/manifests/cargo-lambda.json
@@ -20,10 +20,35 @@
   },
   "license_markdown": "[MIT](https://github.com/cargo-lambda/cargo-lambda/blob/main/LICENSE)",
   "latest": {
-    "version": "1.3.0"
+    "version": "1.4.0"
   },
   "1": {
-    "version": "1.3.0"
+    "version": "1.4.0"
+  },
+  "1.4": {
+    "version": "1.4.0"
+  },
+  "1.4.0": {
+    "x86_64_linux_musl": {
+      "etag": "0x8DCCF7559ED57D5",
+      "checksum": "9ce70414d822e3b901403d63598581d2a35b7e16b1e2009308da0b120cb2f280"
+    },
+    "x86_64_macos": {
+      "etag": "0x8DCCF755A871607",
+      "checksum": "9c2a9e5427c1de759970d8d51efd50ec2a435ae348804cb4a660f1c3b9b43b16"
+    },
+    "x86_64_windows": {
+      "etag": "0x8DCCF755B9D1989",
+      "checksum": "a5ff21d73d42b89973c1d7d7d19ed119561dd98b6d784386d064b9807956a71a"
+    },
+    "aarch64_linux_musl": {
+      "etag": "0x8DCCF755DDBF6FB",
+      "checksum": "5cbb3e1291d4c20a5e988eb690a5153f86be44a2fd6bec6485d00ef1e1aa13aa"
+    },
+    "aarch64_macos": {
+      "etag": "0x8DCCF755E70162A",
+      "checksum": "ef1a8f5521d1d4d0f08b3de6149c48455395aec7328d7587abcdab83f80d736b"
+    }
   },
   "1.3": {
     "version": "1.3.0"