diff --git a/.github/funding.yml b/.github/funding.yml
new file mode 100644
index 0000000..1b71404
--- /dev/null
+++ b/.github/funding.yml
@@ -0,0 +1,2 @@
+github: sindresorhus
+tidelift: npm/p-defer
diff --git a/.github/security.md b/.github/security.md
new file mode 100644
index 0000000..5358dc5
--- /dev/null
+++ b/.github/security.md
@@ -0,0 +1,3 @@
+# Security Policy
+
+To report a security vulnerability, please use the [Tidelift security contact](https://tidelift.com/security). Tidelift will coordinate the fix and disclosure.
diff --git a/readme.md b/readme.md
index 3b4849e..7087cfb 100644
--- a/readme.md
+++ b/readme.md
@@ -43,3 +43,16 @@ Returns an `object` with a `promise` property and functions to `resolve()` and `
 
 - [p-lazy](https://github.com/sindresorhus/p-lazy) - Create a lazy promise that defers execution until `.then()` or `.catch()` is called
 - [More…](https://github.com/sindresorhus/promise-fun)
+
+
+---
+
+<div align="center">
+	<b>
+		<a href="https://tidelift.com/subscription/pkg/npm-p-defer?utm_source=npm-p-defer&utm_medium=referral&utm_campaign=readme">Get professional support for this package with a Tidelift subscription</a>
+	</b>
+	<br>
+	<sub>
+		Tidelift helps make open source sustainable for maintainers while giving companies<br>assurances about security, maintenance, and licensing for their dependencies.
+	</sub>
+</div>