diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 7588fd51..aa1b8bf5 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -28,7 +28,7 @@ jobs:
           # Note: Specifying the version of valgrind and wasm-pack is not supported.
           # cargo-watch is supported by cargo-binstall (through quickinstall)
           - cargo-hack,cargo-llvm-cov,cargo-minimal-versions,parse-changelog,cross,nextest,shellcheck,shfmt,valgrind,wasm-pack,wasmtime,mdbook,cargo-watch
-          - cargo-hack@0.5.14,cargo-llvm-cov@0.4.9,cargo-minimal-versions@0.1.5,parse-changelog@0.4.9,cross@0.2.4,nextest@0.9.11,shellcheck@0.8.0,shfmt@3.5.1,wasmtime@0.38.1,mdbook@0.4.20,cargo-watch@8.1.1
+          - cargo-hack@0.5.15,cargo-llvm-cov@0.4.9,cargo-minimal-versions@0.1.5,parse-changelog@0.4.9,cross@0.2.4,nextest@0.9.11,shellcheck@0.8.0,shfmt@3.5.1,wasmtime@0.38.1,mdbook@0.4.20,cargo-watch@8.1.1
           # Nextest supports basic version ranges as well
           - nextest@0.9
         include:
diff --git a/CHANGELOG.md b/CHANGELOG.md
index db5767d5..eecf7e7b 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-hack@latest` to 0.5.15.
+
 ## [1.5.4] - 2022-07-16
 
 - Update `mdbook@latest` to 0.4.20.
diff --git a/README.md b/README.md
index 14c65d5e..0097758b 100644
--- a/README.md
+++ b/README.md
@@ -39,7 +39,7 @@ To install a specific version, use `@version` syntax:
 ```yaml
 - uses: taiki-e/install-action@v1
   with:
-    tool: cargo-hack@0.5.11
+    tool: cargo-hack@0.5.15
 ```
 
 To install multiple tools:
diff --git a/main.sh b/main.sh
index 579d4ccd..f07c5719 100755
--- a/main.sh
+++ b/main.sh
@@ -127,7 +127,7 @@ for tool in "${tools[@]}"; do
         cargo-hack | cargo-llvm-cov | cargo-minimal-versions | parse-changelog)
             case "${tool}" in
                 # https://github.com/taiki-e/cargo-hack/releases
-                cargo-hack) latest_version="0.5.14" ;;
+                cargo-hack) latest_version="0.5.15" ;;
                 # https://github.com/taiki-e/cargo-llvm-cov/releases
                 cargo-llvm-cov) latest_version="0.4.9" ;;
                 # https://github.com/taiki-e/cargo-minimal-versions/releases