diff --git a/.changeset/smooth-trains-applaude.md b/.changeset/smooth-trains-applaude.md
new file mode 100644
index 000000000000..f5b9ab2bf48b
--- /dev/null
+++ b/.changeset/smooth-trains-applaude.md
@@ -0,0 +1,5 @@
+---
+'@sveltejs/kit': patch
+---
+
+fix: handle non-semver-style dependency versions
diff --git a/packages/package/src/typescript.js b/packages/package/src/typescript.js
index 12d1c32d710f..81c0f348e635 100644
--- a/packages/package/src/typescript.js
+++ b/packages/package/src/typescript.js
@@ -28,7 +28,13 @@ export async function emit_dts(input, output, final_output, cwd, alias, files, t
 	const require = createRequire(import.meta.url);
 	const pkg = load_pkg_json(cwd);
 	const svelte_dep = pkg.peerDependencies?.svelte || pkg.dependencies?.svelte || '3.0';
-	const no_svelte_3 = !semver.intersects(svelte_dep, '^3.0.0');
+	let no_svelte_3;
+	try {
+		no_svelte_3 = !semver.intersects(svelte_dep, '^3.0.0');
+	} catch {
+		// Not all version specs are valid semver, e.g. "latest" or "next" or catalog references
+		no_svelte_3 = true;
+	}
 	await emitDts({
 		libRoot: input,
 		svelteShimsPath: no_svelte_3