diff --git a/package-lock.json b/package-lock.json
index ff92e50..84d7930 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -5,20 +5,83 @@
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-      "resolved": "https://registry.npmjs.org/@now/node/-/node-1.3.4.tgz",
-      "integrity": "sha512-4lK79UaZQPJTllcMkwOXo0I8UJ+cYAkm8AgWsm/iAx8gZrP6zqvAHUL1dV9fKz1dIWBTDFyyb/9HMh0LaTe4dg==",
+      "version": "1.8.4",
+      "resolved": "https://registry.npmjs.org/@now/node/-/node-1.8.4.tgz",
+      "integrity": "sha512-OVsE/PFl10hTOAounUgX23ri2IvCLpL7JfmIrGfiInWCyC4eQqaFGTbsP+HiSiCfhPBnFiEzfstM1/pvMnSbaA==",
       "dev": true,
       "requires": {
-        "@types/node": "*"
+        "@types/node": "*",
+        "ts-node": "8.9.1",
+        "typescript": "3.9.3"
+      },
+      "dependencies": {
+        "typescript": {
+          "version": "3.9.3",
+          "resolved": "https://registry.npmjs.org/typescript/-/typescript-3.9.3.tgz",
+          "integrity": "sha512-D/wqnB2xzNFIcoBG9FG8cXRDjiqSTbG2wd8DMZeQyJlP1vfTkIxH4GKveWaEBYySKIg+USu+E+EDIR47SqnaMQ==",
+          "dev": true
+        }
       }
     },
     "@types/node": {
-      "version": "13.1.4",
-      "resolved": "https://registry.npmjs.org/@types/node/-/node-13.1.4.tgz",
-      "integrity": "sha512-Lue/mlp2egZJoHXZr4LndxDAd7i/7SQYhV0EjWfb/a4/OZ6tuVwMCVPiwkU5nsEipxEf7hmkSU7Em5VQ8P5NGA==",
+      "version": "14.14.5",
+      "resolved": "https://registry.npmjs.org/@types/node/-/node-14.14.5.tgz",
+      "integrity": "sha512-H5Wn24s/ZOukBmDn03nnGTp18A60ny9AmCwnEcgJiTgSGsCO7k+NWP7zjCCbhlcnVCoI+co52dUAt9GMhOSULw==",
       "dev": true
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+    "arg": {
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+      "resolved": "https://registry.npmjs.org/arg/-/arg-4.1.3.tgz",
+      "integrity": "sha512-58S9QDqG0Xx27YwPSt9fJxivjYl432YCwfDMfZ+71RAqUrZef7LrKQZ3LHLOwCS4FLNBplP533Zx895SeOCHvA==",
+      "dev": true
+    },
+    "buffer-from": {
+      "version": "1.1.1",
+      "resolved": "https://registry.npmjs.org/buffer-from/-/buffer-from-1.1.1.tgz",
+      "integrity": "sha512-MQcXEUbCKtEo7bhqEs6560Hyd4XaovZlO/k9V3hjVUF/zwW7KBVdSK4gIt/bzwS9MbR5qob+F5jusZsb0YQK2A==",
+      "dev": true
+    },
+    "diff": {
+      "version": "4.0.2",
+      "resolved": "https://registry.npmjs.org/diff/-/diff-4.0.2.tgz",
+      "integrity": "sha512-58lmxKSA4BNyLz+HHMUzlOEpg09FV+ev6ZMe3vJihgdxzgcwZ8VoEEPmALCZG9LmqfVoNMMKpttIYTVG6uDY7A==",
+      "dev": true
+    },
+    "make-error": {
+      "version": "1.3.6",
+      "resolved": "https://registry.npmjs.org/make-error/-/make-error-1.3.6.tgz",
+      "integrity": "sha512-s8UhlNe7vPKomQhC1qFelMokr/Sc3AgNbso3n74mVPA5LTZwkB9NlXf4XPamLxJE8h0gh73rM94xvwRT2CVInw==",
+      "dev": true
+    },
+    "source-map": {
+      "version": "0.6.1",
+      "resolved": "https://registry.npmjs.org/source-map/-/source-map-0.6.1.tgz",
+      "integrity": "sha512-UjgapumWlbMhkBgzT7Ykc5YXUT46F0iKu8SGXq0bcwP5dz/h0Plj6enJqjz1Zbq2l5WaqYnrVbwWOWMyF3F47g==",
+      "dev": true
+    },
+    "source-map-support": {
+      "version": "0.5.19",
+      "resolved": "https://registry.npmjs.org/source-map-support/-/source-map-support-0.5.19.tgz",
+      "integrity": "sha512-Wonm7zOCIJzBGQdB+thsPar0kYuCIzYvxZwlBa87yi/Mdjv7Tip2cyVbLj5o0cFPN4EVkuTwb3GDDyUx2DGnGw==",
+      "dev": true,
+      "requires": {
+        "buffer-from": "^1.0.0",
+        "source-map": "^0.6.0"
+      }
+    },
+    "ts-node": {
+      "version": "8.9.1",
+      "resolved": "https://registry.npmjs.org/ts-node/-/ts-node-8.9.1.tgz",
+      "integrity": "sha512-yrq6ODsxEFTLz0R3BX2myf0WBCSQh9A+py8PBo1dCzWIOcvisbyH6akNKqDHMgXePF2kir5mm5JXJTH3OUJYOQ==",
+      "dev": true,
+      "requires": {
+        "arg": "^4.1.0",
+        "diff": "^4.0.1",
+        "make-error": "^1.1.1",
+        "source-map-support": "^0.5.17",
+        "yn": "3.1.1"
+      }
+    },
     "typescript": {
       "version": "3.7.4",
       "resolved": "https://registry.npmjs.org/typescript/-/typescript-3.7.4.tgz",
@@ -29,6 +92,12 @@
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       "resolved": "https://registry.npmjs.org/typograf/-/typograf-6.10.0.tgz",
       "integrity": "sha512-vnclxYomZqoN8C1+knZ+oa6oU7ATEgzurjpyiDO8QbPI1iJDRKqafdWPXMIr5sUahCL6mAnGerLYOtka0x54lw=="
+    },
+    "yn": {
+      "version": "3.1.1",
+      "resolved": "https://registry.npmjs.org/yn/-/yn-3.1.1.tgz",
+      "integrity": "sha512-Ux4ygGWsu2c7isFWe8Yu1YluJmqVhxqK2cLXNQA5AcC3QfbGNpM7fu0Y8b/z16pXLnFxZYvWhd3fhBY9DLmC6Q==",
+      "dev": true
     }
   }
 }
diff --git a/package.json b/package.json
index 6a1a845..517b42c 100644
--- a/package.json
+++ b/package.json
@@ -9,7 +9,7 @@
   "author": "Dmitry Teplov <tplk@itplk.ru> (https://github.com/tplk)",
   "license": "MIT",
   "devDependencies": {
-    "@now/node": "1.3.4",
+    "@now/node": "1.8.4",
     "typescript": "3.7.4"
   },
   "dependencies": {