diff --git a/packages/tailwindcss-language-server/src/projects.ts b/packages/tailwindcss-language-server/src/projects.ts
index 3e53d7df..3a1df51d 100644
--- a/packages/tailwindcss-language-server/src/projects.ts
+++ b/packages/tailwindcss-language-server/src/projects.ts
@@ -45,6 +45,7 @@ import type {
   Settings,
   ClassNames,
   Variant,
+  ClassEntry,
 } from '@tailwindcss/language-service/src/util/state'
 import { provideDiagnostics } from './lsp/diagnosticsProvider'
 import { doCodeActions } from '@tailwindcss/language-service/src/codeActions/codeActionProvider'
@@ -1014,7 +1015,7 @@ export async function createProjectService(
         },
       })
 
-      let classList = designSystem.getClassList().map((className) => {
+      let classList: ClassEntry[] = designSystem.getClassList().map((className) => {
         return [
           className[0],
           {
@@ -1025,7 +1026,8 @@ export async function createProjectService(
       })
 
       state.designSystem = designSystem
-      state.classList = classList as any
+      state.classList = classList
+      state.variants = getVariants(state)
 
       console.log('---- RELOADED ----')
     },
diff --git a/packages/tailwindcss-language-service/src/util/state.ts b/packages/tailwindcss-language-service/src/util/state.ts
index dd1966ce..d16ca186 100644
--- a/packages/tailwindcss-language-service/src/util/state.ts
+++ b/packages/tailwindcss-language-service/src/util/state.ts
@@ -89,6 +89,13 @@ export interface Variant {
   selectors: (params?: { value?: string; label?: string }) => string[]
 }
 
+export interface ClassMetadata {
+  color: culori.Color | KeywordColor | null
+  modifiers?: string[]
+}
+
+export type ClassEntry = [string, ClassMetadata]
+
 export interface State {
   enabled: boolean
   isCssConfig?: boolean
@@ -127,7 +134,7 @@ export interface State {
   editor?: EditorState
   jit?: boolean
   jitContext?: any
-  classList?: Array<[string, { color: culori.Color | KeywordColor | null; modifiers?: string[] }]>
+  classList?: ClassEntry[]
   classListContainsMetadata?: boolean
   pluginVersions?: string
   completionItemData?: Record<string, any>
diff --git a/packages/vscode-tailwindcss/CHANGELOG.md b/packages/vscode-tailwindcss/CHANGELOG.md
index 334caf09..f0c28083 100644
--- a/packages/vscode-tailwindcss/CHANGELOG.md
+++ b/packages/vscode-tailwindcss/CHANGELOG.md
@@ -2,7 +2,7 @@
 
 ## Prerelease
 
-- Nothing yet!
+- Reload variants when editing the theme in v4 ([#1094](https://github.com/tailwindlabs/tailwindcss-intellisense/pull/1094))
 
 ## 0.12.14