diff --git a/package-lock.json b/package-lock.json
deleted file mode 100644
index 82c486c..0000000
--- a/package-lock.json
+++ /dev/null
@@ -1,664 +0,0 @@
-{
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diff --git a/package.json b/package.json
index 8169bd8..26df623 100644
--- a/package.json
+++ b/package.json
@@ -15,18 +15,18 @@
     "@types/ws": "6.0.1",
     "autobind-decorator": "2.1.0",
     "chalk": "2.4.2",
-    "lokijs": "1.5.5",
+    "lokijs": "1.5.6",
     "mecab-async": "0.1.2",
     "misskey-reversi": "0.0.5",
     "promise-retry": "1.1.1",
-    "reconnecting-websocket": "4.1.5",
-    "request": "2.87.0",
-    "request-promise-native": "1.0.5",
+    "reconnecting-websocket": "4.1.10",
+    "request": "2.88.0",
+    "request-promise-native": "1.0.7",
     "seedrandom": "2.4.3",
     "timeout-as-promise": "1.0.0",
     "ts-node": "6.0.3",
     "typescript": "2.8.3",
     "uuid": "3.3.2",
-    "ws": "6.0.0"
+    "ws": "6.2.0"
   }
 }