updated packages

package.json

@@ -12,29 +12,29 @@
   },
   "dependencies": {},
   "devDependencies": {
-    "@webcomponents/custom-elements": "1.2.1",
-    "@babel/core": "7.2.2",
-    "babel-loader": "8.0.5",
+    "@webcomponents/custom-elements": "1.2.4",
+    "@babel/core": "7.5.5",
+    "babel-loader": "8.0.6",
     "babel-plugin-transform-custom-element-classes": "0.1.0",
     "babel-preset-env": "1.7.0",
-    "copy-webpack-plugin": "4.6.0",
-    "css-loader": "2.1.0",
+    "copy-webpack-plugin": "5.0.4",
+    "css-loader": "3.2.0",
     "extract-text-webpack-plugin": "3.0.2",
     "replace-in-file-webpack-plugin": "1.0.6",
-    "file-loader": "3.0.1",
-    "gulp": "4.0.0",
+    "file-loader": "4.2.0",
+    "gulp": "4.0.2",
     "html-loader": "0.5.5",
-    "less": "3.9.0",
-    "less-loader": "4.1.0",
-    "npm": "6.6.0",
-    "open": "0.0.5",
+    "less": "3.10.3",
+    "less-loader": "5.0.0",
+    "npm": "6.11.2",
+    "open": "6.4.0",
     "path": "0.12.7",
-    "style-loader": "0.23.1",
-    "ts-loader": "5.3.3",
-    "webpack": "4.28.4",
-    "webpack-cli": "3.2.1",
-    "webpack-dev-server": "3.1.14",
-    "webpack-merge": "4.2.1",
-    "typescript": "3.2.4"
+    "style-loader": "1.0.0",
+    "ts-loader": "6.0.4",
+    "webpack": "4.39.3",
+    "webpack-cli": "3.3.7",
+    "webpack-dev-server": "3.8.0",
+    "webpack-merge": "4.2.2",
+    "typescript": "3.6.2"
   }
 }