diff --git a/CHANGELOG.md b/CHANGELOG.md
index 89d9a525..298fb301 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 `tombi@latest` to 0.7.21.
+
 ## [2.67.2] - 2026-01-21
 
 - Update `wasmtime@latest` to 41.0.0.
diff --git a/manifests/tombi.json b/manifests/tombi.json
index 979e85f8..17d7859f 100644
--- a/manifests/tombi.json
+++ b/manifests/tombi.json
@@ -22,10 +22,36 @@
   },
   "license_markdown": "[MIT](https://github.com/tombi-toml/tombi/blob/main/LICENSE)",
   "latest": {
-    "version": "0.7.20"
+    "version": "0.7.21"
   },
   "0.7": {
-    "version": "0.7.20"
+    "version": "0.7.21"
+  },
+  "0.7.21": {
+    "x86_64_linux_musl": {
+      "etag": "0x8DE58B4B48A333B",
+      "checksum": "ef940744c609853280b38bbf8f669638d8d751c00c291bc9baa5d2daa676bdce"
+    },
+    "x86_64_macos": {
+      "etag": "0x8DE58B4B48C2CD6",
+      "checksum": "60cf4aba1fe926d59575d3244cd4830d76ec35444eca7085ae74bf51d2e52859"
+    },
+    "x86_64_windows": {
+      "etag": "0x8DE58B4B5389A90",
+      "checksum": "6fa76c111b0427e2ce2c658901e5391b4b003640380e96b743a010359ca8e3b8"
+    },
+    "aarch64_linux_musl": {
+      "etag": "0x8DE58B4B496F61F",
+      "checksum": "46f51bc64a5dacee3abe7fbc6575e383fd3bb81241e98c2ad9eea802698dfc8f"
+    },
+    "aarch64_macos": {
+      "etag": "0x8DE58B4B491571E",
+      "checksum": "e596483f14a95af0697e1ff8b9f098a3719ec393f738fc4c293d8b920111adb1"
+    },
+    "aarch64_windows": {
+      "etag": "0x8DE58B4B4939E78",
+      "checksum": "4755310d34ad98396e6fed7c17b61dfc0b17b86a9ea84862d8ac3db4ea97fa4d"
+    }
   },
   "0.7.20": {
     "x86_64_linux_musl": {