diff --git a/web/package.json b/web/package.json
index 2d4c39ff..afcb43b7 100644
--- a/web/package.json
+++ b/web/package.json
@@ -16,7 +16,7 @@
     "@types/node": "^14.14.6",
     "@types/qrcode.react": "^1.0.1",
     "@types/query-string": "^6.3.0",
-    "@types/react": "^16.9.43",
+    "@types/react": "^16.9.56",
     "@types/react-dom": "^16.9.9",
     "@types/react-ga": "^2.3.0",
     "@types/react-router-dom": "^5.1.6",
diff --git a/web/src/components/LinearProgressBar.tsx b/web/src/components/LinearProgressBar.tsx
index 23bccb3c..b2827622 100644
--- a/web/src/components/LinearProgressBar.tsx
+++ b/web/src/components/LinearProgressBar.tsx
@@ -20,7 +20,7 @@ const LinearProgressBar = function (props: Props) {
     }))();
     return (
         <LinearProgress
-            style={props.style}
+            style={props.style as React.CSSProperties}
             variant="determinate"
             classes={{
                 root: style.progressRoot,
diff --git a/web/yarn.lock b/web/yarn.lock
index 064754cd..73e2162f 100644
--- a/web/yarn.lock
+++ b/web/yarn.lock
@@ -1975,13 +1975,13 @@
   dependencies:
     "@types/react" "*"
 
-"@types/react@*", "@types/react@^16.9.43":
-  version "16.9.43"
-  resolved "https://registry.yarnpkg.com/@types/react/-/react-16.9.43.tgz#c287f23f6189666ee3bebc2eb8d0f84bcb6cdb6b"
-  integrity sha512-PxshAFcnJqIWYpJbLPriClH53Z2WlJcVZE+NP2etUtWQs2s7yIMj3/LDKZT/5CHJ/F62iyjVCDu2H3jHEXIxSg==
+"@types/react@*", "@types/react@^16.9.56":
+  version "16.9.56"
+  resolved "https://registry.yarnpkg.com/@types/react/-/react-16.9.56.tgz#ea25847b53c5bec064933095fc366b1462e2adf0"
+  integrity sha512-gIkl4J44G/qxbuC6r2Xh+D3CGZpJ+NdWTItAPmZbR5mUS+JQ8Zvzpl0ea5qT/ZT3ZNTUcDKUVqV3xBE8wv/DyQ==
   dependencies:
     "@types/prop-types" "*"
-    csstype "^2.2.0"
+    csstype "^3.0.2"
 
 "@types/resolve@0.0.8":
   version "0.0.8"
@@ -4121,11 +4121,16 @@ cssstyle@^2.2.0:
   dependencies:
     cssom "~0.3.6"
 
-csstype@^2.2.0, csstype@^2.5.2, csstype@^2.6.5, csstype@^2.6.7:
+csstype@^2.5.2, csstype@^2.6.5, csstype@^2.6.7:
   version "2.6.10"
   resolved "https://registry.yarnpkg.com/csstype/-/csstype-2.6.10.tgz#e63af50e66d7c266edb6b32909cfd0aabe03928b"
   integrity sha512-D34BqZU4cIlMCY93rZHbrq9pjTAQJ3U8S8rfBqjwHxkGPThWFjzZDQpgMJY0QViLxth6ZKYiwFBo14RdN44U/w==
 
+csstype@^3.0.2:
+  version "3.0.4"
+  resolved "https://registry.yarnpkg.com/csstype/-/csstype-3.0.4.tgz#b156d7be03b84ff425c9a0a4b1e5f4da9c5ca888"
+  integrity sha512-xc8DUsCLmjvCfoD7LTGE0ou2MIWLx0K9RCZwSHMOdynqRsP4MtUcLeqh1HcQ2dInwDTqn+3CE0/FZh1et+p4jA==
+
 cyclist@^1.0.1:
   version "1.0.1"
   resolved "https://registry.yarnpkg.com/cyclist/-/cyclist-1.0.1.tgz#596e9698fd0c80e12038c2b82d6eb1b35b6224d9"