diff --git a/README.md b/README.md
index 07309eb..976e5bc 100644
--- a/README.md
+++ b/README.md
@@ -39,9 +39,11 @@ yarn add -D svelte-time
 npm i -D svelte-time
 
 # pnpm
-pnpm i -D svelte-time
+pnpm i -D svelte-time dayjs
 ```
 
+Note that [pnpm](https://github.com/pnpm/pnpm) users must also install `dayjs`.
+
 ## Usage
 
 <details>