diff --git a/.github/funding.yml b/.github/funding.yml
deleted file mode 100644
index 424a929a..00000000
--- a/.github/funding.yml
+++ /dev/null
@@ -1,4 +0,0 @@
-github: sindresorhus
-open_collective: sindresorhus
-tidelift: npm/file-type
-custom: https://sindresorhus.com/donate
diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index d50ada65..31f93e98 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -14,8 +14,8 @@ jobs:
           - 16
           - 14
     steps:
-      - uses: actions/checkout@v3
-      - uses: actions/setup-node@v3
+      - 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 8b98cece..c6c799da 100644
--- a/package.json
+++ b/package.json
@@ -18,6 +18,7 @@
 		},
 		"./core": "./core.js"
 	},
+	"sideEffects": false,
 	"engines": {
 		"node": ">=14.16"
 	},
diff --git a/readme.md b/readme.md
index aa0bc799..70f6aa92 100644
--- a/readme.md
+++ b/readme.md
@@ -473,13 +473,9 @@ The following file types will not be accepted:
 ## Related
 
 - [file-type-cli](https://github.com/sindresorhus/file-type-cli) - CLI for this module
+- [image-dimensions](https://github.com/sindresorhus/image-dimensions) - Get the dimensions of an image
 
 ## Maintainers
 
 - [Sindre Sorhus](https://github.com/sindresorhus)
 - [Borewit](https://github.com/Borewit)
-
-**Former**
-
-- [Mikael Finstad](https://github.com/mifi)
-- [Ben Brook](https://github.com/bencmbrook)