diff --git a/websrc/package.json b/websrc/package.json
index d0fceed..7b2567c 100644
--- a/websrc/package.json
+++ b/websrc/package.json
@@ -4,8 +4,8 @@
   "main": "intex.tsx",
   "license": "MIT",
   "devDependencies": {
-    "@types/react": "~16",
-    "@types/react-dom": "~16",
+    "@types/react": "^17.0.0",
+    "@types/react-dom": "^17.0.0",
     "@types/react-helmet": "^6.1.0",
     "@types/react-plotly.js": "^2.2.4",
     "@types/socket.io-client": "^1.4.34",
@@ -21,17 +21,14 @@
     "plotly.js": "^1.58.2",
     "postcss": "^8.2.1",
     "postcss-cli": "^8.3.1",
-    "react": "~16",
-    "react-dom": "~16",
+    "react": "^17.0.1",
+    "react-cryptocoins": "^1.0.11",
+    "react-dom": "^17.0.1",
     "react-helmet": "^6.1.0",
     "socket.io-client": "~2",
     "tailwindcss": "^2.0.2"
   },
   "resolutions": {
-    "@types/react": "~16",
-    "@types/react-dom": "~16",
-    "react": "~16",
-    "react-dom": "~16",
     "socket.io-parser": "~2"
   },
   "scripts": {
diff --git a/websrc/yarn.lock b/websrc/yarn.lock
index 1123835..8ec3d14 100644
--- a/websrc/yarn.lock
+++ b/websrc/yarn.lock
@@ -1119,12 +1119,12 @@
   resolved "https://registry.yarnpkg.com/@types/q/-/q-1.5.4.tgz#15925414e0ad2cd765bfef58842f7e26a7accb24"
   integrity sha512-1HcDas8SEj4z1Wc696tH56G8OlRaH/sqZOynNNB+HF0WOeXPaxTtbYzJY2oEfiUxjSKjhCKr+MvR7dCHcEelug==
 
-"@types/react-dom@~16":
-  version "16.9.10"
-  resolved "https://registry.yarnpkg.com/@types/react-dom/-/react-dom-16.9.10.tgz#4485b0bec3d41f856181b717f45fd7831101156f"
-  integrity sha512-ItatOrnXDMAYpv6G8UCk2VhbYVTjZT9aorLtA/OzDN9XJ2GKcfam68jutoAcILdRjsRUO8qb7AmyObF77Q8QFw==
+"@types/react-dom@^17.0.0":
+  version "17.0.0"
+  resolved "https://registry.yarnpkg.com/@types/react-dom/-/react-dom-17.0.0.tgz#b3b691eb956c4b3401777ee67b900cb28415d95a"
+  integrity sha512-lUqY7OlkF/RbNtD5nIq7ot8NquXrdFrjSOR6+w9a9RFQevGi1oZO1dcJbXMeONAPKtZ2UrZOEJ5UOCVsxbLk/g==
   dependencies:
-    "@types/react" "^16"
+    "@types/react" "*"
 
 "@types/react-helmet@^6.1.0":
   version "6.1.0"
@@ -1141,7 +1141,7 @@
     "@types/plotly.js" "*"
     "@types/react" "*"
 
-"@types/react@*", "@types/react@^16", "@types/react@~16":
+"@types/react@*":
   version "16.14.2"
   resolved "https://registry.yarnpkg.com/@types/react/-/react-16.14.2.tgz#85dcc0947d0645349923c04ccef6018a1ab7538c"
   integrity sha512-BzzcAlyDxXl2nANlabtT4thtvbbnhee8hMmH/CcJrISDBVcJS1iOsP1f0OAgSdGE0MsY9tqcrb9YoZcOFv9dbQ==
@@ -1149,6 +1149,14 @@
     "@types/prop-types" "*"
     csstype "^3.0.2"
 
+"@types/react@^17.0.0":
+  version "17.0.0"
+  resolved "https://registry.yarnpkg.com/@types/react/-/react-17.0.0.tgz#5af3eb7fad2807092f0046a1302b7823e27919b8"
+  integrity sha512-aj/L7RIMsRlWML3YB6KZiXB3fV2t41+5RBGYF8z+tAKU43Px8C3cYUZsDvf1/+Bm4FK21QWBrDutu8ZJ/70qOw==
+  dependencies:
+    "@types/prop-types" "*"
+    csstype "^3.0.2"
+
 "@types/socket.io-client@^1.4.34":
   version "1.4.34"
   resolved "https://registry.yarnpkg.com/@types/socket.io-client/-/socket.io-client-1.4.34.tgz#8ca5f5732a9ad92b79aba71083cda5e5821e3ed9"
@@ -6745,7 +6753,7 @@ process@^0.11.10:
   resolved "https://registry.yarnpkg.com/process/-/process-0.11.10.tgz#7332300e840161bda3e69a1d1d91a7d4bc16f182"
   integrity sha1-czIwDoQBYb2j5podHZGn1LwW8YI=
 
-prop-types@^15.6.2, prop-types@^15.7.2:
+prop-types@^15.7.2:
   version "15.7.2"
   resolved "https://registry.yarnpkg.com/prop-types/-/prop-types-15.7.2.tgz#52c41e75b8c87e72b9d9360e0206b99dcbffa6c5"
   integrity sha512-8QQikdH7//R2vurIJSutZ1smHYTcLpRWEOlHnzcWHmBYrOGUysKwSsrC89BCiFj3CbrfJ/nXFdJepOVrY1GCHQ==
@@ -6903,15 +6911,19 @@ rat-vec@^1.1.1:
   dependencies:
     big-rat "^1.0.3"
 
-react-dom@~16:
-  version "16.14.0"
-  resolved "https://registry.yarnpkg.com/react-dom/-/react-dom-16.14.0.tgz#7ad838ec29a777fb3c75c3a190f661cf92ab8b89"
-  integrity sha512-1gCeQXDLoIqMgqD3IO2Ah9bnf0w9kzhwN5q4FGnHZ67hBm9yePzB5JJAIQCc8x3pFnNlwFq4RidZggNAAkzWWw==
+react-cryptocoins@^1.0.11:
+  version "1.0.11"
+  resolved "https://registry.yarnpkg.com/react-cryptocoins/-/react-cryptocoins-1.0.11.tgz#c2f3ea9303538fba9179bc39e4ecb237f7b5f589"
+  integrity sha512-9HAqYA718bBcYYtGPLPOtlAAQZn/fSgLxxfX5RIYN+XZkZC7wDU1UV+hHoj9/D35zOAWxZyuJKK3g3haZtZSiA==
+
+react-dom@^17.0.1:
+  version "17.0.1"
+  resolved "https://registry.yarnpkg.com/react-dom/-/react-dom-17.0.1.tgz#1de2560474ec9f0e334285662ede52dbc5426fc6"
+  integrity sha512-6eV150oJZ9U2t9svnsspTMrWNyHc6chX0KzDeAOXftRa8bNeOKTTfCJ7KorIwenkHd2xqVTBTCZd79yk/lx/Ug==
   dependencies:
     loose-envify "^1.1.0"
     object-assign "^4.1.1"
-    prop-types "^15.6.2"
-    scheduler "^0.19.1"
+    scheduler "^0.20.1"
 
 react-fast-compare@^3.1.1:
   version "3.2.0"
@@ -6945,14 +6957,13 @@ react-side-effect@^2.1.0:
   resolved "https://registry.yarnpkg.com/react-side-effect/-/react-side-effect-2.1.1.tgz#66c5701c3e7560ab4822a4ee2742dee215d72eb3"
   integrity sha512-2FoTQzRNTncBVtnzxFOk2mCpcfxQpenBMbk5kSVBg5UcPqV9fRbgY2zhb7GTWWOlpFmAxhClBDlIq8Rsubz1yQ==
 
-react@~16:
-  version "16.14.0"
-  resolved "https://registry.yarnpkg.com/react/-/react-16.14.0.tgz#94d776ddd0aaa37da3eda8fc5b6b18a4c9a3114d"
-  integrity sha512-0X2CImDkJGApiAlcf0ODKIneSwBPhqJawOa5wCtKbu7ZECrmS26NvtSILynQ66cgkT/RJ4LidJOc3bUESwmU8g==
+react@^17.0.1:
+  version "17.0.1"
+  resolved "https://registry.yarnpkg.com/react/-/react-17.0.1.tgz#6e0600416bd57574e3f86d92edba3d9008726127"
+  integrity sha512-lG9c9UuMHdcAexXtigOZLX8exLWkW0Ku29qPRU8uhF2R9BN96dLCt0psvzPLlHc5OWkgymP3qwTRgbnw5BKx3w==
   dependencies:
     loose-envify "^1.1.0"
     object-assign "^4.1.1"
-    prop-types "^15.6.2"
 
 read-cache@^1.0.0:
   version "1.0.0"
@@ -7450,10 +7461,10 @@ saxes@^3.1.9:
   dependencies:
     xmlchars "^2.1.1"
 
-scheduler@^0.19.1:
-  version "0.19.1"
-  resolved "https://registry.yarnpkg.com/scheduler/-/scheduler-0.19.1.tgz#4f3e2ed2c1a7d65681f4c854fa8c5a1ccb40f196"
-  integrity sha512-n/zwRWRYSUj0/3g/otKDRPMh6qv2SYMWNq85IEa8iZyAv8od9zDYpGSnpBEjNgcMNq6Scbu5KfIPxNF72R/2EA==
+scheduler@^0.20.1:
+  version "0.20.1"
+  resolved "https://registry.yarnpkg.com/scheduler/-/scheduler-0.20.1.tgz#da0b907e24026b01181ecbc75efdc7f27b5a000c"
+  integrity sha512-LKTe+2xNJBNxu/QhHvDR14wUXHRQbVY5ZOYpOGWRzhydZUqrLb2JBvLPY7cAqFmqrWuDED0Mjk7013SZiOz6Bw==
   dependencies:
     loose-envify "^1.1.0"
     object-assign "^4.1.1"