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/package.json b/package.json
index e8cc4a2..2c2a788 100644
--- a/package.json
+++ b/package.json
@@ -24,7 +24,7 @@
     "devDependencies": {
         "@eslint-community/eslint-plugin-mysticatea": "^15.2.0",
         "dot-prop": "^6.0.1",
-        "eslint": "^7.32.0",
+        "eslint": "^8.28.0",
         "esm": "^3.2.25",
         "espree": "github:eslint/espree#1c744b3a602b783926344811a9459b92afe57444",
         "mocha": "^8.4.0",
@@ -40,7 +40,7 @@
         "warun": "^1.0.0"
     },
     "peerDependencies": {
-        "eslint": ">=6"
+        "eslint": "^6.0.0 || ^7.0.0 || ^8.0.0"
     },
     "scripts": {
         "prebuild": "npm run -s clean",