diff --git a/package.json b/package.json
index 20298c6d1..096815b44 100644
--- a/package.json
+++ b/package.json
@@ -21,7 +21,7 @@
   },
   "homepage": "https://github.com/tdiary/tdiary-core",
   "devDependencies": {
-    "jquery": "~3.4.1",
+    "jquery": "~3.2.1",
     "jasmine-jquery": "~2.1.1"
     }
 }