diff --git a/RNComponentsDemo/package-lock.json b/RNComponentsDemo/package-lock.json
index c6966b9..03d23c1 100644
--- a/RNComponentsDemo/package-lock.json
+++ b/RNComponentsDemo/package-lock.json
@@ -2768,7 +2768,8 @@
         },
         "ansi-regex": {
           "version": "2.1.1",
-          "bundled": true
+          "bundled": true,
+          "optional": true
         },
         "aproba": {
           "version": "1.2.0",
@@ -2786,11 +2787,13 @@
         },
         "balanced-match": {
           "version": "1.0.0",
-          "bundled": true
+          "bundled": true,
+          "optional": true
         },
         "brace-expansion": {
           "version": "1.1.11",
           "bundled": true,
+          "optional": true,
           "requires": {
             "balanced-match": "^1.0.0",
             "concat-map": "0.0.1"
@@ -2803,15 +2806,18 @@
         },
         "code-point-at": {
           "version": "1.1.0",
-          "bundled": true
+          "bundled": true,
+          "optional": true
         },
         "concat-map": {
           "version": "0.0.1",
-          "bundled": true
+          "bundled": true,
+          "optional": true
         },
         "console-control-strings": {
           "version": "1.1.0",
-          "bundled": true
+          "bundled": true,
+          "optional": true
         },
         "core-util-is": {
           "version": "1.0.2",
@@ -2914,7 +2920,8 @@
         },
         "inherits": {
           "version": "2.0.3",
-          "bundled": true
+          "bundled": true,
+          "optional": true
         },
         "ini": {
           "version": "1.3.5",
@@ -2924,6 +2931,7 @@
         "is-fullwidth-code-point": {
           "version": "1.0.0",
           "bundled": true,
+          "optional": true,
           "requires": {
             "number-is-nan": "^1.0.0"
           }
@@ -2936,17 +2944,20 @@
         "minimatch": {
           "version": "3.0.4",
           "bundled": true,
+          "optional": true,
           "requires": {
             "brace-expansion": "^1.1.7"
           }
         },
         "minimist": {
           "version": "0.0.8",
-          "bundled": true
+          "bundled": true,
+          "optional": true
         },
         "minipass": {
           "version": "2.3.5",
           "bundled": true,
+          "optional": true,
           "requires": {
             "safe-buffer": "^5.1.2",
             "yallist": "^3.0.0"
@@ -2963,6 +2974,7 @@
         "mkdirp": {
           "version": "0.5.1",
           "bundled": true,
+          "optional": true,
           "requires": {
             "minimist": "0.0.8"
           }
@@ -3035,7 +3047,8 @@
         },
         "number-is-nan": {
           "version": "1.0.1",
-          "bundled": true
+          "bundled": true,
+          "optional": true
         },
         "object-assign": {
           "version": "4.1.1",
@@ -3045,6 +3058,7 @@
         "once": {
           "version": "1.4.0",
           "bundled": true,
+          "optional": true,
           "requires": {
             "wrappy": "1"
           }
@@ -3120,7 +3134,8 @@
         },
         "safe-buffer": {
           "version": "5.1.2",
-          "bundled": true
+          "bundled": true,
+          "optional": true
         },
         "safer-buffer": {
           "version": "2.1.2",
@@ -3150,6 +3165,7 @@
         "string-width": {
           "version": "1.0.2",
           "bundled": true,
+          "optional": true,
           "requires": {
             "code-point-at": "^1.0.0",
             "is-fullwidth-code-point": "^1.0.0",
@@ -3167,6 +3183,7 @@
         "strip-ansi": {
           "version": "3.0.1",
           "bundled": true,
+          "optional": true,
           "requires": {
             "ansi-regex": "^2.0.0"
           }
@@ -3205,11 +3222,13 @@
         },
         "wrappy": {
           "version": "1.0.2",
-          "bundled": true
+          "bundled": true,
+          "optional": true
         },
         "yallist": {
           "version": "3.0.3",
-          "bundled": true
+          "bundled": true,
+          "optional": true
         }
       }
     },
@@ -3854,6 +3873,8 @@
     },
     "jest": {
       "version": "24.9.0",
+      "resolved": "https://registry.npmjs.org/jest/-/jest-24.9.0.tgz",
+      "integrity": "sha512-YvkBL1Zm7d2B1+h5fHEOdyjCG+sGMz4f8D86/0HiqJ6MB4MnDc8FgP5vdWsGnemOQro7lnYo8UakZ3+5A0jxGw==",
       "dev": true,
       "requires": {
         "import-local": "^2.0.0",
@@ -5525,6 +5546,8 @@
     },
     "metro-react-native-babel-preset": {
       "version": "0.56.0",
+      "resolved": "https://registry.npmjs.org/metro-react-native-babel-preset/-/metro-react-native-babel-preset-0.56.0.tgz",
+      "integrity": "sha512-MAo1fm0dNn6MVZmylaz6k2HC1MINHLTLfE7O3a9Xz3fAtbGbApisp06rBUfK5uUqIJDmAaKgbiT34lHJSIiE6Q==",
       "dev": true,
       "requires": {
         "@babel/plugin-proposal-class-properties": "^7.0.0",
@@ -6278,9 +6301,9 @@
       "integrity": "sha1-QRyttXTFoUDTpLGRDUDYDMn0C0A="
     },
     "path-parse": {
-      "version": "1.0.6",
-      "resolved": "https://registry.npm.taobao.org/path-parse/download/path-parse-1.0.6.tgz",
-      "integrity": "sha1-1i27VnlAXXLEc37FhgDp3c8G0kw="
+      "version": "1.0.7",
+      "resolved": "https://registry.npmjs.org/path-parse/-/path-parse-1.0.7.tgz",
+      "integrity": "sha512-LDJzPVEEEPR+y48z93A0Ed0yXb8pAByGWo/k5YYdYgpY2/2EsOsksJrq7lOHxryrVOn1ejG6oAp8ahvOIQD8sw=="
     },
     "path-type": {
       "version": "2.0.0",
@@ -6506,6 +6529,8 @@
     },
     "react": {
       "version": "16.8.3",
+      "resolved": "https://registry.npmjs.org/react/-/react-16.8.3.tgz",
+      "integrity": "sha512-3UoSIsEq8yTJuSu0luO1QQWYbgGEILm+eJl2QN/VLDi7hL+EN18M3q3oVZwmVzzBJ3DkM7RMdRwBmZZ+b4IzSA==",
       "requires": {
         "loose-envify": "^1.1.0",
         "object-assign": "^4.1.1",
@@ -6556,6 +6581,8 @@
     },
     "react-native": {
       "version": "0.59.10",
+      "resolved": "https://registry.npmjs.org/react-native/-/react-native-0.59.10.tgz",
+      "integrity": "sha512-guB9YW+pBqS1dnfZ4ntzjINopiCUAbdmshU2wMWD1W32fRczLAopi/7Q2iHKP8LTCdxuYZV3fa9Mew5PSuANAw==",
       "requires": {
         "@babel/runtime": "^7.0.0",
         "@react-native-community/cli": "^1.2.1",
@@ -6770,6 +6797,8 @@
     },
     "react-test-renderer": {
       "version": "16.8.3",
+      "resolved": "https://registry.npmjs.org/react-test-renderer/-/react-test-renderer-16.8.3.tgz",
+      "integrity": "sha512-rjJGYebduKNZH0k1bUivVrRLX04JfIQ0FKJLPK10TAb06XWhfi4gTobooF9K/DEFNW98iGac3OSxkfIJUN9Mdg==",
       "dev": true,
       "requires": {
         "object-assign": "^4.1.1",
diff --git a/RNComponentsDemo/yarn.lock b/RNComponentsDemo/yarn.lock
index 49ba046..194893d 100644
--- a/RNComponentsDemo/yarn.lock
+++ b/RNComponentsDemo/yarn.lock
@@ -4620,9 +4620,9 @@ path-key@^2.0.0, path-key@^2.0.1:
   integrity sha1-QRyttXTFoUDTpLGRDUDYDMn0C0A=
 
 path-parse@^1.0.6:
-  version "1.0.6"
-  resolved "https://registry.npm.taobao.org/path-parse/download/path-parse-1.0.6.tgz#d62dbb5679405d72c4737ec58600e9ddcf06d24c"
-  integrity sha1-1i27VnlAXXLEc37FhgDp3c8G0kw=
+  version "1.0.7"
+  resolved "https://registry.yarnpkg.com/path-parse/-/path-parse-1.0.7.tgz#fbc114b60ca42b30d9daf5858e4bd68bbedb6735"
+  integrity sha512-LDJzPVEEEPR+y48z93A0Ed0yXb8pAByGWo/k5YYdYgpY2/2EsOsksJrq7lOHxryrVOn1ejG6oAp8ahvOIQD8sw==
 
 path-type@^2.0.0:
   version "2.0.0"
@@ -4849,6 +4849,11 @@ react-is@^16.8.1, react-is@^16.8.3, react-is@^16.8.4:
   resolved "https://registry.npm.taobao.org/react-is/download/react-is-16.9.0.tgz#21ca9561399aad0ff1a7701c01683e8ca981edcb"
   integrity sha1-IcqVYTmarQ/xp3AcAWg+jKmB7cs=
 
+react-native-picker@^4.3.7:
+  version "4.3.7"
+  resolved "https://registry.yarnpkg.com/react-native-picker/-/react-native-picker-4.3.7.tgz#9842e8c62ff0d8b676e9514d9f9172413c0518a8"
+  integrity sha1-mELoxi/w2LZ26VFNn5FyQTwFGKg=
+
 react-native@0.59.10:
   version "0.59.10"
   resolved "https://registry.npm.taobao.org/react-native/download/react-native-0.59.10.tgz#352f381e382f93a0403be499c9e384bf51c2591c"