diff --git a/.changeset/heavy-ties-worry.md b/.changeset/heavy-ties-worry.md
new file mode 100644
index 000000000000..161ed899cdff
--- /dev/null
+++ b/.changeset/heavy-ties-worry.md
@@ -0,0 +1,5 @@
+---
+"@sveltejs/package": patch
+---
+
+fix: resolve side effect imports
diff --git a/packages/package/src/utils.js b/packages/package/src/utils.js
index 39012a6f1779..c5856c0bda7e 100644
--- a/packages/package/src/utils.js
+++ b/packages/package/src/utils.js
@@ -30,7 +30,7 @@ export function resolve_aliases(input, file, content, aliases) {
 		return match;
 	};
 
-	content = content.replace(/from\s+('|")([^"';,]+?)\1/g, replace_import_path);
+	content = content.replace(/(?:import|from)\s*('|")([^"';,]+?)\1/g, replace_import_path);
 	content = content.replace(/import\s*\(\s*('|")([^"';,]+?)\1\s*\)/g, replace_import_path);
 	return content;
 }
diff --git a/packages/package/test/fixtures/resolve-alias/expected/Test.svelte b/packages/package/test/fixtures/resolve-alias/expected/Test.svelte
index d6dbdc91b465..92bda05ea19f 100644
--- a/packages/package/test/fixtures/resolve-alias/expected/Test.svelte
+++ b/packages/package/test/fixtures/resolve-alias/expected/Test.svelte
@@ -1,4 +1,5 @@
 <script>
+    import './css/global.css';
     import { foo } from './sub/foo';
 		import { util } from './utils';
     export let bar = foo;
diff --git a/packages/package/test/fixtures/resolve-alias/expected/Test.svelte.d.ts b/packages/package/test/fixtures/resolve-alias/expected/Test.svelte.d.ts
index 34bd39c48418..8197dbefd3f8 100644
--- a/packages/package/test/fixtures/resolve-alias/expected/Test.svelte.d.ts
+++ b/packages/package/test/fixtures/resolve-alias/expected/Test.svelte.d.ts
@@ -1,4 +1,5 @@
 import { SvelteComponent } from 'svelte';
+import './css/global.css';
 declare const __propDef: {
 	props: {
 		bar?: import('./sub/foo').Foo;
diff --git a/packages/package/test/fixtures/resolve-alias/expected/css/global.css b/packages/package/test/fixtures/resolve-alias/expected/css/global.css
new file mode 100644
index 000000000000..9c5f3fb44d09
--- /dev/null
+++ b/packages/package/test/fixtures/resolve-alias/expected/css/global.css
@@ -0,0 +1 @@
+/* some css to test if side effect imports are resolved */
diff --git a/packages/package/test/fixtures/resolve-alias/src/lib/Test.svelte b/packages/package/test/fixtures/resolve-alias/src/lib/Test.svelte
index 9e188abd7c03..a8463253270c 100644
--- a/packages/package/test/fixtures/resolve-alias/src/lib/Test.svelte
+++ b/packages/package/test/fixtures/resolve-alias/src/lib/Test.svelte
@@ -1,4 +1,6 @@
 <script lang="ts">
+	import '$lib/css/global.css';
+
 	import { foo } from '$lib/sub/foo';
 	import { util } from '$utils';
 
diff --git a/packages/package/test/fixtures/resolve-alias/src/lib/css/global.css b/packages/package/test/fixtures/resolve-alias/src/lib/css/global.css
new file mode 100644
index 000000000000..9c5f3fb44d09
--- /dev/null
+++ b/packages/package/test/fixtures/resolve-alias/src/lib/css/global.css
@@ -0,0 +1 @@
+/* some css to test if side effect imports are resolved */