diff --git a/CHANGELOG.md b/CHANGELOG.md
index 0a884821..24e44e5a 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 `just@latest` to 1.42.1.
+
 - Update `cargo-shear@latest` to 1.4.0.
 
 - Update `cyclonedx@latest` to 0.29.0.
diff --git a/manifests/just.json b/manifests/just.json
index 59eaef83..36dd9c06 100644
--- a/manifests/just.json
+++ b/manifests/just.json
@@ -22,10 +22,65 @@
   },
   "license_markdown": "[CC0-1.0](https://github.com/casey/just/blob/master/LICENSE)",
   "latest": {
-    "version": "1.41.0"
+    "version": "1.42.1"
   },
   "1": {
-    "version": "1.41.0"
+    "version": "1.42.1"
+  },
+  "1.42": {
+    "version": "1.42.1"
+  },
+  "1.42.1": {
+    "x86_64_linux_musl": {
+      "etag": "0x8DDC31A97F75277",
+      "checksum": "079b2bba3d6299a5875f591fd5d14477de03d21aabd19c8c75c3d6802df1eb08"
+    },
+    "x86_64_macos": {
+      "etag": "0x8DDC31A97236438",
+      "checksum": "91f31906f26acfc13cb57abddaf091876331efed6dfbf7b53bd507d1e9eed8ec"
+    },
+    "x86_64_windows": {
+      "etag": "0x8DDC31ADC5A4C20",
+      "checksum": "3c7c6a55d5866936009a5ee289faaf81cb5300b7498c563cc4827a59b4ae2c5a"
+    },
+    "aarch64_linux_musl": {
+      "etag": "0x8DDC31AA9E0C498",
+      "checksum": "2dafc61f9181743faac79a775e0cced4a05174851d9366aab3bc623089fbdb60"
+    },
+    "aarch64_macos": {
+      "etag": "0x8DDC31A8F3C8E9F",
+      "checksum": "9ceb13235e6b86bee17fb4e90be498fa899a98d972e301bb4fa17099dd5367d5"
+    },
+    "aarch64_windows": {
+      "etag": "0x8DDC31AC92FD762",
+      "checksum": "8dad1e579301d9d3ee3d0f9ece8985c536b166736aec311b4af3e42b5777b77f"
+    }
+  },
+  "1.42.0": {
+    "x86_64_linux_musl": {
+      "etag": "0x8DDC280CA68AD2D",
+      "checksum": "50b95beb36ac2faf19c40bb9d12a1aacb12b9b4b7a98af151d358e700feb2e8a"
+    },
+    "x86_64_macos": {
+      "etag": "0x8DDC280D0469263",
+      "checksum": "7888c26b777cff23d3dc1bd478fa1e2fb6d17d3b302004014ad3ac251ca7a354"
+    },
+    "x86_64_windows": {
+      "etag": "0x8DDC280F5AA88D6",
+      "checksum": "36661aef54d3625386adc8bea404e14c2909516667363cb957917d824ec58a0d"
+    },
+    "aarch64_linux_musl": {
+      "etag": "0x8DDC280D460595C",
+      "checksum": "dbe7a549b1441a007eeb81232737352a5316339c258cd3a200ac0e89b5c8cc1c"
+    },
+    "aarch64_macos": {
+      "etag": "0x8DDC280C68F0290",
+      "checksum": "5e006af61c8770e01b14002549e2b57b52a3e35d3e5bac2b2470653a8b2e15bd"
+    },
+    "aarch64_windows": {
+      "etag": "0x8DDC280F67C08C4",
+      "checksum": "ca0f47d5344587b179aa5e24973b12faff5c77afcc3b29fab4f94969df1c3384"
+    }
   },
   "1.41": {
     "version": "1.41.0"