diff --git a/CHANGELOG.md b/CHANGELOG.md
index 667220b2..5a4214e7 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 `espup@latest` to 0.12.0.
+
 ## [2.38.4] - 2024-06-11
 
 - Workaround Cygwin bash's buggy behavior. ([#534](https://github.com/taiki-e/install-action/pull/534))
diff --git a/manifests/espup.json b/manifests/espup.json
index 9fe7b1b8..68b20d2e 100644
--- a/manifests/espup.json
+++ b/manifests/espup.json
@@ -19,7 +19,27 @@
   },
   "license_markdown": "[MIT](https://github.com/esp-rs/espup/blob/main/LICENSE-MIT) OR [Apache-2.0](https://github.com/esp-rs/espup/blob/main/LICENSE-APACHE)",
   "latest": {
-    "version": "0.11.0"
+    "version": "0.12.0"
+  },
+  "0.12": {
+    "version": "0.12.0"
+  },
+  "0.12.0": {
+    "x86_64_linux_gnu": {
+      "checksum": "2c89370a2cf2eaf2d300439d5f15fa89ae71d635b027965b1325effc8d84b383"
+    },
+    "x86_64_macos": {
+      "checksum": "00867da14720005dc0ef174e93164ca2934126840be7ddb7a9eaa2c17e940555"
+    },
+    "x86_64_windows": {
+      "checksum": "a7d128180d30e1d351c63a02436de8a75a8b90479fb49ce23b4eaadf03e637d1"
+    },
+    "aarch64_linux_gnu": {
+      "checksum": "b7259c225ad713f94b73e4f86f7daf37e7c02ba959b00a3f2f8327fbab639247"
+    },
+    "aarch64_macos": {
+      "checksum": "a91717477c816bc10b75a250a3d415ee1eea329dcc9a8bddb70d73bc4ebc521e"
+    }
   },
   "0.11": {
     "version": "0.11.0"