diff --git a/packages/dev-frontend/package.json b/packages/dev-frontend/package.json
index 3f9959500..cee95dab3 100644
--- a/packages/dev-frontend/package.json
+++ b/packages/dev-frontend/package.json
@@ -39,7 +39,7 @@
     "react-scripts": "4.0.3",
     "source-map-explorer": "2.5.2",
     "theme-ui": "0.6.0-canary.1544.5359f8a1e408a4dfeb74a9ae39688270286e534a.0",
-    "typescript": "4.1.5"
+    "typescript": "4.3.5"
   },
   "scripts": {
     "analyze": "source-map-explorer 'build/static/js/*.js'",
diff --git a/packages/fuzzer/package.json b/packages/fuzzer/package.json
index 73fba2af8..407bb1c09 100644
--- a/packages/fuzzer/package.json
+++ b/packages/fuzzer/package.json
@@ -11,7 +11,7 @@
     "dotenv": "^8.2.0",
     "ethers": "^5.4.3",
     "ts-node": "^9.0.0",
-    "typescript": "~4.1.0",
+    "typescript": "~4.3.5",
     "yargs": "^16.0.3"
   }
 }
diff --git a/packages/lib-base/package.json b/packages/lib-base/package.json
index aafb8aacf..3b8eb3c09 100644
--- a/packages/lib-base/package.json
+++ b/packages/lib-base/package.json
@@ -35,6 +35,6 @@
     "mocha": "8.3.2",
     "npm-run-all": "4.1.5",
     "ts-node": "9.1.1",
-    "typescript": "4.1.5"
+    "typescript": "4.3.5"
   }
 }
diff --git a/packages/lib-ethers/package.json b/packages/lib-ethers/package.json
index b513dffc9..d139fae68 100644
--- a/packages/lib-ethers/package.json
+++ b/packages/lib-ethers/package.json
@@ -63,7 +63,7 @@
     "hardhat": "2.1.1",
     "npm-run-all": "4.1.5",
     "ts-node": "9.1.1",
-    "typescript": "4.1.5",
+    "typescript": "4.3.5",
     "ws": "7.4.6"
   }
 }
diff --git a/packages/lib-react/package.json b/packages/lib-react/package.json
index 22f37d79f..0266c77a2 100644
--- a/packages/lib-react/package.json
+++ b/packages/lib-react/package.json
@@ -24,6 +24,6 @@
     "eslint-plugin-react-hooks": "4.2.0",
     "npm-run-all": "4.1.5",
     "react": "17.0.1",
-    "typescript": "4.1.5"
+    "typescript": "4.3.5"
   }
 }
diff --git a/packages/lib-subgraph/package.json b/packages/lib-subgraph/package.json
index b0ed813c5..17b42acc5 100644
--- a/packages/lib-subgraph/package.json
+++ b/packages/lib-subgraph/package.json
@@ -18,7 +18,7 @@
     "apollo": "^2.30.3",
     "npm-run-all": "^4.1.5",
     "rimraf": "^3.0.2",
-    "typescript": "~4.1.0"
+    "typescript": "~4.3.5"
   },
   "dependencies": {
     "@apollo/client": "^3.3.12",
diff --git a/packages/providers/package.json b/packages/providers/package.json
index 208328a6f..d75631f2b 100644
--- a/packages/providers/package.json
+++ b/packages/providers/package.json
@@ -10,7 +10,7 @@
   "devDependencies": {
     "ethers": "^5.4.3",
     "ts-node": "^9.1.1",
-    "typescript": "~4.1.0"
+    "typescript": "~4.3.5"
   },
   "peerDependencies": {
     "ethers": "^5.3.0"
diff --git a/yarn.lock b/yarn.lock
index 777c0fcb6..247fdeb0e 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -20330,7 +20330,12 @@ typedarray@^0.0.6:
   resolved "https://registry.yarnpkg.com/typedarray/-/typedarray-0.0.6.tgz#867ac74e3864187b1d3d47d996a78ec5c8830777"
   integrity sha1-hnrHTjhkGHsdPUfZlqeOxciDB3c=
 
-typescript@4.1.5, typescript@~4.1.0, typescript@~4.1.3:
+typescript@4.3.5, typescript@~4.3.5:
+  version "4.3.5"
+  resolved "https://registry.yarnpkg.com/typescript/-/typescript-4.3.5.tgz#4d1c37cc16e893973c45a06886b7113234f119f4"
+  integrity sha512-DqQgihaQ9cUrskJo9kIyW/+g0Vxsk8cDtZ52a3NGh0YNTfpUSArXSohyUGnvbPazEPLu398C0UxmKSOrPumUzA==
+
+typescript@~4.1.3:
   version "4.1.5"
   resolved "https://registry.yarnpkg.com/typescript/-/typescript-4.1.5.tgz#123a3b214aaff3be32926f0d8f1f6e704eb89a72"
   integrity sha512-6OSu9PTIzmn9TCDiovULTnET6BgXtDYL4Gg4szY+cGsc3JP1dQL8qvE8kShTRx1NIw4Q9IBHlwODjkjWEtMUyA==