diff --git a/.changeset/modern-schools-tan.md b/.changeset/modern-schools-tan.md
new file mode 100644
index 000000000..e15ed781d
--- /dev/null
+++ b/.changeset/modern-schools-tan.md
@@ -0,0 +1,5 @@
+---
+'@vanilla-extract/vite-plugin': minor
+---
+
+Add `viteConfigOverrides` option
diff --git a/packages/vite-plugin/package.json b/packages/vite-plugin/package.json
index 24b86825b..2a93477a8 100644
--- a/packages/vite-plugin/package.json
+++ b/packages/vite-plugin/package.json
@@ -16,7 +16,8 @@
   "author": "SEEK",
   "license": "MIT",
   "dependencies": {
-    "@vanilla-extract/integration": "workspace:^"
+    "@vanilla-extract/integration": "workspace:^",
+    "deepmerge": "^4.3.1"
   },
   "devDependencies": {
     "vite": "^5.0.11"
diff --git a/packages/vite-plugin/src/index.ts b/packages/vite-plugin/src/index.ts
index 54fbb7bd8..a18c2e4a7 100644
--- a/packages/vite-plugin/src/index.ts
+++ b/packages/vite-plugin/src/index.ts
@@ -18,6 +18,7 @@ import {
   createCompiler,
   normalizePath,
 } from '@vanilla-extract/integration';
+import deepmerge from 'deepmerge';
 
 const virtualExtCss = '.vanilla.css';
 
@@ -45,10 +46,12 @@ const removeIncompatiblePlugins = (plugin: PluginOption) =>
 interface Options {
   identifiers?: IdentifierOption;
   unstable_mode?: 'transform' | 'emitCss';
+  viteConfigOverrides?: Partial<UserConfig>;
 }
 export function vanillaExtractPlugin({
   identifiers,
   unstable_mode: mode = 'emitCss',
+  viteConfigOverrides = {},
 }: Options = {}): Plugin {
   let config: ResolvedConfig;
   let configEnv: ConfigEnv;
@@ -142,12 +145,15 @@ export function vanillaExtractPlugin({
           configForViteCompiler = config.inlineConfig;
         }
 
-        const viteConfig = {
-          ...configForViteCompiler,
-          plugins: configForViteCompiler?.plugins
-            ?.flat()
-            .filter(removeIncompatiblePlugins),
-        };
+        const viteConfig = deepmerge(
+          {
+            ...configForViteCompiler,
+            plugins: configForViteCompiler?.plugins
+              ?.flat()
+              .filter(removeIncompatiblePlugins),
+          },
+          viteConfigOverrides,
+        );
 
         compiler = createCompiler({
           root: config.root,
diff --git a/pnpm-lock.yaml b/pnpm-lock.yaml
index 63317a282..cc252faa5 100644
--- a/pnpm-lock.yaml
+++ b/pnpm-lock.yaml
@@ -578,6 +578,9 @@ importers:
       '@vanilla-extract/integration':
         specifier: workspace:^
         version: link:../integration
+      deepmerge:
+        specifier: ^4.3.1
+        version: 4.3.1
     devDependencies:
       vite:
         specifier: ^5.0.11
@@ -5323,6 +5326,10 @@ packages:
     resolution: {integrity: sha512-FJ3UgI4gIl+PHZm53knsuSFpE+nESMr7M4v9QcgB7S63Kj/6WqMiFQJpBBYz1Pt+66bZpP3Q7Lye0Oo9MPKEdg==}
     engines: {node: '>=0.10.0'}
 
+  deepmerge@4.3.1:
+    resolution: {integrity: sha512-3sUqbMEc77XqpdNO7FRyRog+eW3ph+GYCbj+rK+uYyRMuwsVy0rMiVtPn+QJlKFvWP/1PYpapqYn0Me2knFn+A==}
+    engines: {node: '>=0.10.0'}
+
   default-browser-id@5.0.0:
     resolution: {integrity: sha512-A6p/pu/6fyBcA1TRz/GqWYPViplrftcW2gZC9q79ngNCKAeR/X3gcEdXQHl4KNXV+3wgIJ1CPkJQ3IHM6lcsyA==}
     engines: {node: '>=18'}
@@ -13418,7 +13425,7 @@ snapshots:
     dependencies:
       chalk: 5.0.1
       cron-parser: 4.6.0
-      deepmerge: 4.2.2
+      deepmerge: 4.3.1
       dot-prop: 7.2.0
       execa: 6.1.0
       fast-safe-stringify: 2.1.1
@@ -14766,7 +14773,7 @@ snapshots:
       '@rollup/pluginutils': 3.1.0(rollup@2.79.1)
       '@types/resolve': 1.17.1
       builtin-modules: 3.3.0
-      deepmerge: 4.2.2
+      deepmerge: 4.3.1
       is-module: 1.0.0
       resolve: 1.22.8
       rollup: 2.79.1
@@ -15337,7 +15344,7 @@ snapshots:
       csstype: 3.0.10
       dedent: 1.5.3
       deep-object-diff: 1.1.9
-      deepmerge: 4.2.2
+      deepmerge: 4.3.1
       media-query-parser: 2.0.2
       modern-ahocorasick: 1.0.0
       picocolors: 1.0.0
@@ -16985,6 +16992,8 @@ snapshots:
 
   deepmerge@4.2.2: {}
 
+  deepmerge@4.3.1: {}
+
   default-browser-id@5.0.0: {}
 
   default-browser@5.2.1:
@@ -19190,7 +19199,7 @@ snapshots:
       babel-jest: 29.7.0(@babel/core@7.23.9)
       chalk: 4.1.2
       ci-info: 3.9.0
-      deepmerge: 4.2.2
+      deepmerge: 4.3.1
       glob: 7.2.0
       graceful-fs: 4.2.10
       jest-circus: 29.7.0