diff --git a/CHANGELOG.md b/CHANGELOG.md
index 93ab2b30ceb1..069428f6fb44 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -10,6 +10,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 ### Fixed
 
 - Bump versions for security vulnerabilities ([#14697](https://github.com/tailwindlabs/tailwindcss/pull/14697))
+- Ensure the TypeScript types for the `boxShadow` theme configuration allows arrays ([#14856](https://github.com/tailwindlabs/tailwindcss/pull/14856))
 
 ## [3.4.14] - 2024-10-15
 
diff --git a/types/config.d.ts b/types/config.d.ts
index 80b58d07028a..2c95a6dec67f 100644
--- a/types/config.d.ts
+++ b/types/config.d.ts
@@ -207,7 +207,7 @@ export interface ThemeConfig {
   caretColor: ThemeConfig['colors']
   accentColor: ThemeConfig['colors']
   opacity: ResolvableTo<KeyValuePair>
-  boxShadow: ResolvableTo<KeyValuePair>
+  boxShadow: ResolvableTo<KeyValuePair<string, string | string[]>>
   boxShadowColor: ThemeConfig['colors']
   outlineWidth: ResolvableTo<KeyValuePair>
   outlineOffset: ResolvableTo<KeyValuePair>