diff --git a/.changeset/brown-boxes-hug.md b/.changeset/brown-boxes-hug.md
new file mode 100644
index 000000000..bc1ee6bce
--- /dev/null
+++ b/.changeset/brown-boxes-hug.md
@@ -0,0 +1,6 @@
+---
+'@segment/analytics-next': patch
+'@segment/analytics-core': patch
+---
+
+Upgrade typescript
diff --git a/examples/with-vite/package.json b/examples/with-vite/package.json
index 91e2b00fb..5a680ce30 100644
--- a/examples/with-vite/package.json
+++ b/examples/with-vite/package.json
@@ -16,7 +16,7 @@
     "@types/react": "^18.0.0",
     "@types/react-dom": "^18.0.0",
     "@vitejs/plugin-react": "^1.3.0",
-    "typescript": "^4.6.4",
+    "typescript": "^4.7.0",
     "vite": "^2.9.13"
   }
 }
diff --git a/package.json b/package.json
index 8ae871e5c..63ee38e2a 100644
--- a/package.json
+++ b/package.json
@@ -59,7 +59,7 @@
     "ts-jest": "^28.0.4",
     "ts-node": "^10.8.0",
     "turbo": "^1.3.1",
-    "typescript": "^4.6.4"
+    "typescript": "^4.7.0"
   },
   "resolutions": {
     "@segment/analytics-next": "workspace:*",
diff --git a/packages/browser/src/test-helpers/fixtures/create-fetch-method.ts b/packages/browser/src/test-helpers/fixtures/create-fetch-method.ts
index b27f041d1..3ba5b64c2 100644
--- a/packages/browser/src/test-helpers/fixtures/create-fetch-method.ts
+++ b/packages/browser/src/test-helpers/fixtures/create-fetch-method.ts
@@ -5,7 +5,7 @@ import { cdnSettingsMinimal } from './cdn-settings'
 export const createMockFetchImplementation = (
   cdnSettings: Partial<LegacySettings> = {}
 ) => {
-  return (url: RequestInfo, req?: RequestInit) => {
+  return (...[url, req]: Parameters<typeof fetch>) => {
     const reqUrl = url.toString()
     if (!req || (req.method === 'get' && reqUrl.includes('cdn.segment.com'))) {
       // GET https://cdn.segment.com/v1/projects/{writeKey}
diff --git a/packages/core/src/utils/pick.ts b/packages/core/src/utils/pick.ts
index 43057bc17..917b1ab50 100644
--- a/packages/core/src/utils/pick.ts
+++ b/packages/core/src/utils/pick.ts
@@ -1,4 +1,4 @@
-export const pickBy = <T, K extends keyof T>(
+export const pickBy = <T extends object, K extends keyof T>(
   obj: T,
   fn: (key: K, v: T[K]) => boolean
 ) => {
diff --git a/yarn.lock b/yarn.lock
index c38701994..2072423a7 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -962,7 +962,7 @@ __metadata:
     "@vitejs/plugin-react": ^1.3.0
     react: ^18.0.0
     react-dom: ^18.0.0
-    typescript: ^4.6.4
+    typescript: ^4.7.0
     vite: ^2.9.13
   languageName: unknown
   linkType: soft
@@ -4350,7 +4350,7 @@ __metadata:
     ts-jest: ^28.0.4
     ts-node: ^10.8.0
     turbo: ^1.3.1
-    typescript: ^4.6.4
+    typescript: ^4.7.0
   languageName: unknown
   linkType: soft
 
@@ -13520,23 +13520,23 @@ __metadata:
   languageName: node
   linkType: hard
 
-"typescript@npm:^4.6.4":
-  version: 4.6.4
-  resolution: "typescript@npm:4.6.4"
+"typescript@npm:^4.7.0":
+  version: 4.9.5
+  resolution: "typescript@npm:4.9.5"
   bin:
     tsc: bin/tsc
     tsserver: bin/tsserver
-  checksum: e7bfcc39cd4571a63a54e5ea21f16b8445268b9900bf55aee0e02ad981be576acc140eba24f1af5e3c1457767c96cea6d12861768fb386cf3ffb34013718631a
+  checksum: ee000bc26848147ad423b581bd250075662a354d84f0e06eb76d3b892328d8d4440b7487b5a83e851b12b255f55d71835b008a66cbf8f255a11e4400159237db
   languageName: node
   linkType: hard
 
-"typescript@patch:typescript@^4.6.4#~builtin<compat/typescript>":
-  version: 4.6.4
-  resolution: "typescript@patch:typescript@npm%3A4.6.4#~builtin<compat/typescript>::version=4.6.4&hash=7ad353"
+"typescript@patch:typescript@^4.7.0#~builtin<compat/typescript>":
+  version: 4.9.5
+  resolution: "typescript@patch:typescript@npm%3A4.9.5#~builtin<compat/typescript>::version=4.9.5&hash=7ad353"
   bin:
     tsc: bin/tsc
     tsserver: bin/tsserver
-  checksum: 1cb434fbc637d347be90e3a0c6cd05e33c38f941713c8786d3031faf1842c2c148ba91d2fac01e7276b0ae3249b8633f1660e32686cc7a8c6a8fd5361dc52c66
+  checksum: 2eee5c37cad4390385db5db5a8e81470e42e8f1401b0358d7390095d6f681b410f2c4a0c496c6ff9ebd775423c7785cdace7bcdad76c7bee283df3d9718c0f20
   languageName: node
   linkType: hard