diff --git a/.github/funding.yml b/.github/funding.yml
deleted file mode 100644
index 951ae38..0000000
--- a/.github/funding.yml
+++ /dev/null
@@ -1,4 +0,0 @@
-github: sindresorhus
-open_collective: sindresorhus
-tidelift: npm/eslint-config-xo-space
-custom: https://sindresorhus.com/donate
diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index 3b8aa86..346585c 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -10,12 +10,11 @@ jobs:
       fail-fast: false
       matrix:
         node-version:
-          - 16
-          - 14
-          - 12
+          - 20
+          - 18
     steps:
-      - uses: actions/checkout@v2
-      - uses: actions/setup-node@v2
+      - uses: actions/checkout@v4
+      - uses: actions/setup-node@v4
         with:
           node-version: ${{ matrix.node-version }}
       - run: npm install
diff --git a/package.json b/package.json
index 287a6ee..377c050 100644
--- a/package.json
+++ b/package.json
@@ -10,6 +10,7 @@
 		"email": "sindresorhus@gmail.com",
 		"url": "https://sindresorhus.com"
 	},
+	"sideEffects": false,
 	"engines": {
 		"node": ">=12"
 	},
@@ -48,14 +49,14 @@
 		"simple"
 	],
 	"dependencies": {
-		"eslint-config-xo": "^0.43.0"
+		"eslint-config-xo": "^0.44.0"
 	},
 	"devDependencies": {
 		"ava": "^2.4.0",
-		"eslint": "^8.27.0",
+		"eslint": "^8.56.0",
 		"is-plain-obj": "^3.0.0"
 	},
 	"peerDependencies": {
-		"eslint": ">=8.27.0"
+		"eslint": ">=8.56.0"
 	}
 }