diff --git a/CHANGELOG.md b/CHANGELOG.md
index 8e74cc84..b17cbf5f 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-llvm-cov@latest` to 0.8.4.
+
 - Update `typos@latest` to 1.43.3.
 
 - Update `vacuum@latest` to 0.23.8.
diff --git a/manifests/cargo-llvm-cov.json b/manifests/cargo-llvm-cov.json
index f426f71c..c88a2dd4 100644
--- a/manifests/cargo-llvm-cov.json
+++ b/manifests/cargo-llvm-cov.json
@@ -31,10 +31,48 @@
   },
   "license_markdown": "[Apache-2.0](https://github.com/taiki-e/cargo-llvm-cov/blob/main/LICENSE-APACHE) OR [MIT](https://github.com/taiki-e/cargo-llvm-cov/blob/main/LICENSE-MIT)",
   "latest": {
-    "version": "0.8.3"
+    "version": "0.8.4"
   },
   "0.8": {
-    "version": "0.8.3"
+    "version": "0.8.4"
+  },
+  "0.8.4": {
+    "x86_64_linux_musl": {
+      "etag": "0x8DE65BA002A078F",
+      "checksum": "6ebea3153495c568651cbb893a7b93f5b648b2ba16415e8cd0a06106a4f80092"
+    },
+    "x86_64_macos": {
+      "etag": "0x8DE65BA244DEC8D",
+      "checksum": "f8abe297605aea79978b92e50862104c1ff934d42e14e7bcb02a50934e14a9c5"
+    },
+    "x86_64_windows": {
+      "etag": "0x8DE65BA43ACAFB4",
+      "checksum": "21fc84103910716b77b67f9d3d586426296135d81cb27e03d9d914b0078742a3"
+    },
+    "aarch64_linux_musl": {
+      "etag": "0x8DE65BA1B10154E",
+      "checksum": "0364061fff9139f9a69badaf110d3e0035befb5ab7ec7a10b19c47af857316d2"
+    },
+    "aarch64_macos": {
+      "etag": "0x8DE65BA1BB034D1",
+      "checksum": "559c2475502b3e9c62e29230e32ecb77a8962f54c9ca32854e140fb436ec993e"
+    },
+    "aarch64_windows": {
+      "etag": "0x8DE65BA11719F3A",
+      "checksum": "ef32ac2b7cce9ca59f4b1489fd335ebaa10fdbf510b191c5ed79547c677f6dd2"
+    },
+    "powerpc64le_linux_musl": {
+      "etag": "0x8DE65BA143F97CE",
+      "checksum": "c532aba1ef4b35c7281398db8e2222a2107b0d66f0f2c6c102d056bc7bf97689"
+    },
+    "riscv64_linux_musl": {
+      "etag": "0x8DE65BA0D4F5913",
+      "checksum": "82e59ca81309bc03c5b0b441623545a56e75762be37e154d6a3b3ddaf02fa120"
+    },
+    "s390x_linux_gnu": {
+      "etag": "0x8DE65BA2ED17AC4",
+      "checksum": "07be3aa06087c92b9466b1c4c4d200b3cbb6ba9ad991cc07a556f5f5e7352c2f"
+    }
   },
   "0.8.3": {
     "x86_64_linux_musl": {