diff --git a/CHANGELOG.md b/CHANGELOG.md
index 900cf15d..0c9de164 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-careful@latest` to 0.4.0.
+
 ## [2.18.14] - 2023-09-21
 
 - Update `syft@latest` to 0.91.0.
diff --git a/manifests/cargo-careful.json b/manifests/cargo-careful.json
index 08d56331..394399ac 100644
--- a/manifests/cargo-careful.json
+++ b/manifests/cargo-careful.json
@@ -12,7 +12,21 @@
     }
   },
   "latest": {
-    "version": "0.3.4"
+    "version": "0.4.0"
+  },
+  "0.4": {
+    "version": "0.4.0"
+  },
+  "0.4.0": {
+    "x86_64_linux_musl": {
+      "checksum": "54cd7e1972e9faf085e3d0798c02054d064bc72de051a2636ece6f5b0ce0176d"
+    },
+    "x86_64_macos": {
+      "checksum": "70d92ad8adf84192caa2066ba981780df926c8aa6cbd398fe489f87af336fe61"
+    },
+    "x86_64_windows": {
+      "checksum": "01ebcae79d9ba0cbb56e5c6bb5757d9cd074a3635704d15b0ef62a000c5d03a8"
+    }
   },
   "0.3": {
     "version": "0.3.4"