diff --git a/.esmrc.json b/.esmrc.json
deleted file mode 100644
index 92f1436..0000000
--- a/.esmrc.json
+++ /dev/null
@@ -1,5 +0,0 @@
-{
-    "cache": true,
-    "debug": true,
-    "sourceMap": true
-}
diff --git a/.github/workflows/CI.yml b/.github/workflows/CI.yml
index 0b4dafc..9ba0f70 100644
--- a/.github/workflows/CI.yml
+++ b/.github/workflows/CI.yml
@@ -44,18 +44,21 @@ jobs:
             matrix.os }})
         strategy:
             matrix:
-                eslint: [7]
+                eslint: [8]
                 node: [12.22.0, 12, 14.17.0, 14, 16, 18]
                 os: [ubuntu-latest]
                 include:
                     # On other platforms
                     - os: windows-latest
-                      eslint: 7
+                      eslint: 8
                       node: 18
                     - os: macos-latest
-                      eslint: 7
+                      eslint: 8
                       node: 18
                     # On old ESLint versions
+                    - eslint: 7
+                      node: 18
+                      os: ubuntu-latest
                     - eslint: 6
                       node: 18
                       os: ubuntu-latest
diff --git a/.nycrc.yml b/.nycrc.yml
index 6ad267e..1f42e20 100644
--- a/.nycrc.yml
+++ b/.nycrc.yml
@@ -4,4 +4,4 @@ reporter:
     - lcov
     - text-summary
 require:
-    - esm
+    - "@babel/register"
diff --git a/babel.config.js b/babel.config.js
new file mode 100644
index 0000000..f274c66
--- /dev/null
+++ b/babel.config.js
@@ -0,0 +1,6 @@
+/* eslint-env node */
+"use strict"
+
+module.exports = {
+    plugins: ["@babel/plugin-transform-modules-commonjs"],
+}
diff --git a/package.json b/package.json
index 754fbc3..514c8d5 100644
--- a/package.json
+++ b/package.json
@@ -49,10 +49,12 @@
         "eslint-visitor-keys": "^3.3.0"
     },
     "devDependencies": {
+        "@babel/core": "^7.20.2",
+        "@babel/plugin-transform-modules-commonjs": "^7.19.6",
+        "@babel/register": "^7.18.9",
         "@eslint-community/eslint-plugin-mysticatea": "^15.2.0",
         "dot-prop": "^6.0.1",
-        "eslint": "^7.32.0",
-        "esm": "^3.2.25",
+        "eslint": "^8.28.0",
         "espree": "github:eslint/espree#1c744b3a602b783926344811a9459b92afe57444",
         "mocha": "^8.4.0",
         "npm-run-all": "^4.1.5",
@@ -67,7 +69,7 @@
         "warun": "^1.0.0"
     },
     "peerDependencies": {
-        "eslint": ">=6"
+        "eslint": "^6.0.0 || ^7.0.0 || ^8.0.0"
     },
     "engines": {
         "node": "^12.22.0 || ^14.17.0 || >=16.0.0"