diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 30be912f..bab94212 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -28,7 +28,7 @@ jobs:
         tool:
           # Note: Specifying the version of valgrind and wasm-pack is not supported.
           - cargo-hack,cargo-llvm-cov,cargo-minimal-versions,parse-changelog,cross,shellcheck,shfmt,valgrind,wasm-pack,wasmtime
-          - cargo-hack@0.5.12,cargo-llvm-cov@0.2.2,cargo-minimal-versions@0.1.3,parse-changelog@0.4.7,cross@0.2.1,shellcheck@0.8.0,shfmt@3.4.3,wasmtime@0.34.0
+          - cargo-hack@0.5.12,cargo-llvm-cov@0.2.3,cargo-minimal-versions@0.1.3,parse-changelog@0.4.7,cross@0.2.1,shellcheck@0.8.0,shfmt@3.4.3,wasmtime@0.34.0
         include:
           - os: macos-10.15
             tool: cargo-hack,cargo-llvm-cov,cargo-minimal-versions,parse-changelog,cross,shellcheck,shfmt,wasm-pack,wasmtime
diff --git a/CHANGELOG.md b/CHANGELOG.md
index 9b6b744b..16512a69 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 0.2.3.
+
 ## [1.1.7] - 2022-03-02
 
 - Update `cargo-llvm-cov@latest` to 0.2.2.
diff --git a/main.sh b/main.sh
index c7bd080e..3deb7cd4 100755
--- a/main.sh
+++ b/main.sh
@@ -59,7 +59,7 @@ for tool in "${tools[@]}"; do
                 # https://github.com/taiki-e/cargo-hack/releases
                 cargo-hack) latest_version="0.5.12" ;;
                 # https://github.com/taiki-e/cargo-llvm-cov/releases
-                cargo-llvm-cov) latest_version="0.2.2" ;;
+                cargo-llvm-cov) latest_version="0.2.3" ;;
                 # https://github.com/taiki-e/cargo-minimal-versions/releases
                 cargo-minimal-versions) latest_version="0.1.3" ;;
                 # https://github.com/taiki-e/parse-changelog/releases