diff --git a/auto-publish/utils.js b/auto-publish/utils.js
index ec8ed1c..c4b5302 100644
--- a/auto-publish/utils.js
+++ b/auto-publish/utils.js
@@ -231,7 +231,7 @@ async function patchWork(originalDirOfPackage, targetDir, registryOrg) {
   // was doing nothing (?)
   // await copyAndPatchDirectory("../source", "../node_modules/react-dom/", "../target");
 
-  originalReactDOMPackageJSON.version = `${originalReactDOMPackageJSON.version}-${reactHotLoaderPackageJSON.version}`;
+  originalReactDOMPackageJSON.version = `${originalReactDOMPackageJSON.version}+${reactHotLoaderPackageJSON.version}`;
   basePackageJSON.name = basePackageJSON.name.replace(
     "REGISTRY_ORG_PLACEHOLDER",
     registryOrg