diff --git a/docs/reference/default-theme-config.md b/docs/reference/default-theme-config.md
index 980fa0aa..f41fb7ad 100644
--- a/docs/reference/default-theme-config.md
+++ b/docs/reference/default-theme-config.md
@@ -244,6 +244,7 @@ type SocialLinkIcon =
| 'instagram'
| 'linkedin'
| 'mastodon'
+ | 'npm'
| 'slack'
| 'twitter'
| 'x'
diff --git a/src/client/theme-default/support/socialIcons.ts b/src/client/theme-default/support/socialIcons.ts
index df427040..18c4bf8c 100644
--- a/src/client/theme-default/support/socialIcons.ts
+++ b/src/client/theme-default/support/socialIcons.ts
@@ -12,6 +12,7 @@ export const icons = {
'',
mastodon:
'',
+ npm: '',
slack:
'',
twitter:
diff --git a/types/default-theme.d.ts b/types/default-theme.d.ts
index fc8d4343..d6636643 100644
--- a/types/default-theme.d.ts
+++ b/types/default-theme.d.ts
@@ -334,6 +334,7 @@ export namespace DefaultTheme {
| 'instagram'
| 'linkedin'
| 'mastodon'
+ | 'npm'
| 'slack'
| 'twitter'
| 'x'