diff --git a/client/grpc-web-fake-transport/package-lock.json b/client/grpc-web-fake-transport/package-lock.json
index 49a485b5..9581ee7d 100644
--- a/client/grpc-web-fake-transport/package-lock.json
+++ b/client/grpc-web-fake-transport/package-lock.json
@@ -675,7 +675,6 @@
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 				"jest-util": "^26.6.2",
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 				"slash": "^3.0.0",
 				"source-map": "^0.6.0",
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@@ -1888,8 +1887,7 @@
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 				"esutils": "^2.0.2",
-				"optionator": "^0.8.1",
-				"source-map": "~0.6.1"
+				"optionator": "^0.8.1"
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 			"bin": {
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@@ -3130,7 +3128,6 @@
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 				"anymatch": "^3.0.3",
 				"fb-watchman": "^2.0.0",
-				"fsevents": "^2.1.2",
 				"graceful-fs": "^4.2.4",
 				"jest-regex-util": "^26.0.0",
 				"jest-serializer": "^26.6.2",
@@ -5861,9 +5858,9 @@
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-			"resolved": "https://registry.npmjs.org/typescript/-/typescript-4.1.3.tgz",
-			"integrity": "sha512-B3ZIOf1IKeH2ixgHhj6la6xdwR9QrLC5d1VKeCSY4tvkqhF2eqd9O7txNlS0PO3GrBAFIdr3L1ndNwteUbZLYg==",
+			"version": "4.3.5",
+			"resolved": "https://registry.npmjs.org/typescript/-/typescript-4.3.5.tgz",
+			"integrity": "sha512-DqQgihaQ9cUrskJo9kIyW/+g0Vxsk8cDtZ52a3NGh0YNTfpUSArXSohyUGnvbPazEPLu398C0UxmKSOrPumUzA==",
 			"dev": true,
 			"bin": {
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@@ -10907,9 +10904,9 @@
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-			"resolved": "https://registry.npmjs.org/typescript/-/typescript-4.1.3.tgz",
-			"integrity": "sha512-B3ZIOf1IKeH2ixgHhj6la6xdwR9QrLC5d1VKeCSY4tvkqhF2eqd9O7txNlS0PO3GrBAFIdr3L1ndNwteUbZLYg==",
+			"version": "4.3.5",
+			"resolved": "https://registry.npmjs.org/typescript/-/typescript-4.3.5.tgz",
+			"integrity": "sha512-DqQgihaQ9cUrskJo9kIyW/+g0Vxsk8cDtZ52a3NGh0YNTfpUSArXSohyUGnvbPazEPLu398C0UxmKSOrPumUzA==",
 			"dev": true
 		},
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diff --git a/client/grpc-web-node-http-transport/package-lock.json b/client/grpc-web-node-http-transport/package-lock.json
index 950e6946..e2a7e59e 100644
--- a/client/grpc-web-node-http-transport/package-lock.json
+++ b/client/grpc-web-node-http-transport/package-lock.json
@@ -49,9 +49,9 @@
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 		},
 		"node_modules/typescript": {
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-			"resolved": "https://registry.npmjs.org/typescript/-/typescript-4.1.3.tgz",
-			"integrity": "sha512-B3ZIOf1IKeH2ixgHhj6la6xdwR9QrLC5d1VKeCSY4tvkqhF2eqd9O7txNlS0PO3GrBAFIdr3L1ndNwteUbZLYg==",
+			"version": "4.3.5",
+			"resolved": "https://registry.npmjs.org/typescript/-/typescript-4.3.5.tgz",
+			"integrity": "sha512-DqQgihaQ9cUrskJo9kIyW/+g0Vxsk8cDtZ52a3NGh0YNTfpUSArXSohyUGnvbPazEPLu398C0UxmKSOrPumUzA==",
 			"dev": true,
 			"bin": {
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@@ -91,9 +91,9 @@
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-			"resolved": "https://registry.npmjs.org/typescript/-/typescript-4.1.3.tgz",
-			"integrity": "sha512-B3ZIOf1IKeH2ixgHhj6la6xdwR9QrLC5d1VKeCSY4tvkqhF2eqd9O7txNlS0PO3GrBAFIdr3L1ndNwteUbZLYg==",
+			"version": "4.3.5",
+			"resolved": "https://registry.npmjs.org/typescript/-/typescript-4.3.5.tgz",
+			"integrity": "sha512-DqQgihaQ9cUrskJo9kIyW/+g0Vxsk8cDtZ52a3NGh0YNTfpUSArXSohyUGnvbPazEPLu398C0UxmKSOrPumUzA==",
 			"dev": true
 		}
 	}
diff --git a/client/grpc-web-react-example/package-lock.json b/client/grpc-web-react-example/package-lock.json
index 76dc7643..38ee2c59 100644
--- a/client/grpc-web-react-example/package-lock.json
+++ b/client/grpc-web-react-example/package-lock.json
@@ -16,7 +16,7 @@
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 				"ts-loader": "^8.0.14",
 				"ts-protoc-gen": "0.14.0",
-				"typescript": "4.1.3",
+				"typescript": "4.3.5",
 				"webpack": "^5.19.0",
 				"webpack-cli": "^4.4.0",
 				"webpack-dev-server": "^3.11.2"
@@ -938,7 +938,6 @@
 				"anymatch": "^2.0.0",
 				"async-each": "^1.0.1",
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-				"fsevents": "^1.2.7",
 				"glob-parent": "^3.1.0",
 				"inherits": "^2.0.3",
 				"is-binary-path": "^1.0.0",
@@ -5705,9 +5704,9 @@
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-			"resolved": "https://registry.npmjs.org/typescript/-/typescript-4.1.3.tgz",
-			"integrity": "sha512-B3ZIOf1IKeH2ixgHhj6la6xdwR9QrLC5d1VKeCSY4tvkqhF2eqd9O7txNlS0PO3GrBAFIdr3L1ndNwteUbZLYg==",
+			"version": "4.3.5",
+			"resolved": "https://registry.npmjs.org/typescript/-/typescript-4.3.5.tgz",
+			"integrity": "sha512-DqQgihaQ9cUrskJo9kIyW/+g0Vxsk8cDtZ52a3NGh0YNTfpUSArXSohyUGnvbPazEPLu398C0UxmKSOrPumUzA==",
 			"dev": true,
 			"bin": {
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@@ -11126,9 +11125,9 @@
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-			"resolved": "https://registry.npmjs.org/typescript/-/typescript-4.1.3.tgz",
-			"integrity": "sha512-B3ZIOf1IKeH2ixgHhj6la6xdwR9QrLC5d1VKeCSY4tvkqhF2eqd9O7txNlS0PO3GrBAFIdr3L1ndNwteUbZLYg==",
+			"version": "4.3.5",
+			"resolved": "https://registry.npmjs.org/typescript/-/typescript-4.3.5.tgz",
+			"integrity": "sha512-DqQgihaQ9cUrskJo9kIyW/+g0Vxsk8cDtZ52a3NGh0YNTfpUSArXSohyUGnvbPazEPLu398C0UxmKSOrPumUzA==",
 			"dev": true
 		},
 		"union-value": {
diff --git a/client/grpc-web-react-example/package.json b/client/grpc-web-react-example/package.json
index 08d56d80..f357f074 100644
--- a/client/grpc-web-react-example/package.json
+++ b/client/grpc-web-react-example/package.json
@@ -20,7 +20,7 @@
     "concurrently": "^5.3.0",
     "ts-loader": "^8.0.14",
     "ts-protoc-gen": "0.14.0",
-    "typescript": "4.1.3",
+    "typescript": "4.3.5",
     "webpack": "^5.19.0",
     "webpack-cli": "^4.4.0",
     "webpack-dev-server": "^3.11.2"
diff --git a/client/grpc-web-react-native-transport/package-lock.json b/client/grpc-web-react-native-transport/package-lock.json
index d80f8391..1d66b732 100644
--- a/client/grpc-web-react-native-transport/package-lock.json
+++ b/client/grpc-web-react-native-transport/package-lock.json
@@ -42,9 +42,9 @@
 			"dev": true
 		},
 		"node_modules/typescript": {
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-			"resolved": "https://registry.npmjs.org/typescript/-/typescript-4.1.3.tgz",
-			"integrity": "sha512-B3ZIOf1IKeH2ixgHhj6la6xdwR9QrLC5d1VKeCSY4tvkqhF2eqd9O7txNlS0PO3GrBAFIdr3L1ndNwteUbZLYg==",
+			"version": "4.3.5",
+			"resolved": "https://registry.npmjs.org/typescript/-/typescript-4.3.5.tgz",
+			"integrity": "sha512-DqQgihaQ9cUrskJo9kIyW/+g0Vxsk8cDtZ52a3NGh0YNTfpUSArXSohyUGnvbPazEPLu398C0UxmKSOrPumUzA==",
 			"dev": true,
 			"bin": {
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@@ -78,9 +78,9 @@
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-			"integrity": "sha512-B3ZIOf1IKeH2ixgHhj6la6xdwR9QrLC5d1VKeCSY4tvkqhF2eqd9O7txNlS0PO3GrBAFIdr3L1ndNwteUbZLYg==",
+			"version": "4.3.5",
+			"resolved": "https://registry.npmjs.org/typescript/-/typescript-4.3.5.tgz",
+			"integrity": "sha512-DqQgihaQ9cUrskJo9kIyW/+g0Vxsk8cDtZ52a3NGh0YNTfpUSArXSohyUGnvbPazEPLu398C0UxmKSOrPumUzA==",
 			"dev": true
 		}
 	}
diff --git a/client/grpc-web/package-lock.json b/client/grpc-web/package-lock.json
index 15b8eb11..bad192e2 100644
--- a/client/grpc-web/package-lock.json
+++ b/client/grpc-web/package-lock.json
@@ -16,7 +16,7 @@
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 				"google-protobuf": "^3.14.0",
 				"ts-loader": "^8.0.14",
-				"typescript": "4.1.3",
+				"typescript": "4.3.5",
 				"webpack": "^5.19.0",
 				"webpack-cli": "^4.4.0"
 			},
@@ -1535,9 +1535,9 @@
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-			"resolved": "https://registry.npmjs.org/typescript/-/typescript-4.1.3.tgz",
-			"integrity": "sha512-B3ZIOf1IKeH2ixgHhj6la6xdwR9QrLC5d1VKeCSY4tvkqhF2eqd9O7txNlS0PO3GrBAFIdr3L1ndNwteUbZLYg==",
+			"version": "4.3.5",
+			"resolved": "https://registry.npmjs.org/typescript/-/typescript-4.3.5.tgz",
+			"integrity": "sha512-DqQgihaQ9cUrskJo9kIyW/+g0Vxsk8cDtZ52a3NGh0YNTfpUSArXSohyUGnvbPazEPLu398C0UxmKSOrPumUzA==",
 			"dev": true,
 			"bin": {
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@@ -2953,9 +2953,9 @@
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-			"resolved": "https://registry.npmjs.org/typescript/-/typescript-4.1.3.tgz",
-			"integrity": "sha512-B3ZIOf1IKeH2ixgHhj6la6xdwR9QrLC5d1VKeCSY4tvkqhF2eqd9O7txNlS0PO3GrBAFIdr3L1ndNwteUbZLYg==",
+			"version": "4.3.5",
+			"resolved": "https://registry.npmjs.org/typescript/-/typescript-4.3.5.tgz",
+			"integrity": "sha512-DqQgihaQ9cUrskJo9kIyW/+g0Vxsk8cDtZ52a3NGh0YNTfpUSArXSohyUGnvbPazEPLu398C0UxmKSOrPumUzA==",
 			"dev": true
 		},
 		"uri-js": {
diff --git a/client/grpc-web/package.json b/client/grpc-web/package.json
index 6fe12869..fba42811 100644
--- a/client/grpc-web/package.json
+++ b/client/grpc-web/package.json
@@ -40,7 +40,7 @@
     "@types/node": "^14.14.22",
     "google-protobuf": "^3.14.0",
     "ts-loader": "^8.0.14",
-    "typescript": "4.1.3",
+    "typescript": "4.3.5",
     "webpack": "^5.19.0",
     "webpack-cli": "^4.4.0"
   }
diff --git a/integration_test/package-lock.json b/integration_test/package-lock.json
index 73ad63ca..083e0de1 100644
--- a/integration_test/package-lock.json
+++ b/integration_test/package-lock.json
@@ -220,6 +220,19 @@
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 			"dev": true
 		},
+		"@improbable-eng/grpc-web": {
+			"version": "0.14.0",
+			"resolved": "https://registry.npmjs.org/@improbable-eng/grpc-web/-/grpc-web-0.14.0.tgz",
+			"integrity": "sha512-ag1PTMWpBZKGi6GrEcZ4lkU5Qag23Xjo10BmnK9qyx4TMmSVcWmQ3rECirfQzm2uogrM9n1M6xfOpFsJP62ivA==",
+			"requires": {
+				"browser-headers": "^0.4.1"
+			}
+		},
+		"@improbable-eng/grpc-web-node-http-transport": {
+			"version": "0.14.0",
+			"resolved": "https://registry.npmjs.org/@improbable-eng/grpc-web-node-http-transport/-/grpc-web-node-http-transport-0.14.0.tgz",
+			"integrity": "sha512-NGZJgY8zTTWM//9oGdJZ+acmCgcgUcqxu3NV3GMFxw35D+3xkdEz599r9O7urg1Vv0+LzXDvfWEg7qg1Ec8x1w=="
+		},
 		"@types/chai": {
 			"version": "4.2.14",
 			"resolved": "https://registry.npmjs.org/@types/chai/-/chai-4.2.14.tgz",
@@ -3775,9 +3788,9 @@
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+			"version": "4.3.5",
+			"resolved": "https://registry.npmjs.org/typescript/-/typescript-4.3.5.tgz",
+			"integrity": "sha512-DqQgihaQ9cUrskJo9kIyW/+g0Vxsk8cDtZ52a3NGh0YNTfpUSArXSohyUGnvbPazEPLu398C0UxmKSOrPumUzA==",
 			"dev": true
 		},
 		"ua-parser-js": {
diff --git a/integration_test/package.json b/integration_test/package.json
index 1fbaab01..3174e826 100644
--- a/integration_test/package.json
+++ b/integration_test/package.json
@@ -50,7 +50,7 @@
     "ts-loader": "^8.0.14",
     "ts-node": "^9.1.1",
     "ts-protoc-gen": "0.14.0",
-    "typescript": "4.1.3",
+    "typescript": "4.3.5",
     "webpack": "^5.19.0",
     "webpack-cli": "^4.4.0"
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diff --git a/package-lock.json b/package-lock.json
index 3f37e93b..2ac7142c 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -4854,7 +4854,6 @@
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@@ -9181,9 +9180,9 @@
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-      "integrity": "sha512-B3ZIOf1IKeH2ixgHhj6la6xdwR9QrLC5d1VKeCSY4tvkqhF2eqd9O7txNlS0PO3GrBAFIdr3L1ndNwteUbZLYg==",
+      "version": "4.3.5",
+      "resolved": "https://registry.npmjs.org/typescript/-/typescript-4.3.5.tgz",
+      "integrity": "sha512-DqQgihaQ9cUrskJo9kIyW/+g0Vxsk8cDtZ52a3NGh0YNTfpUSArXSohyUGnvbPazEPLu398C0UxmKSOrPumUzA==",
       "dev": true,
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@@ -17424,9 +17423,9 @@
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-      "integrity": "sha512-B3ZIOf1IKeH2ixgHhj6la6xdwR9QrLC5d1VKeCSY4tvkqhF2eqd9O7txNlS0PO3GrBAFIdr3L1ndNwteUbZLYg==",
+      "version": "4.3.5",
+      "resolved": "https://registry.npmjs.org/typescript/-/typescript-4.3.5.tgz",
+      "integrity": "sha512-DqQgihaQ9cUrskJo9kIyW/+g0Vxsk8cDtZ52a3NGh0YNTfpUSArXSohyUGnvbPazEPLu398C0UxmKSOrPumUzA==",
       "dev": true
     },
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