diff --git a/.changeset/ripe-taxes-press.md b/.changeset/ripe-taxes-press.md
deleted file mode 100644
index 58f6e0ecf12f..000000000000
--- a/.changeset/ripe-taxes-press.md
+++ /dev/null
@@ -1,16 +0,0 @@
----
----
----
-"section": other
----
-
-Target ES2021
-
-The TypeScript build for Fluid Framework packages has been updated to target ES2021 instead of ES2020.
-This may result in newer JavaScript language features being used.
-This does not change TypeScript types, nor the JavaScript libraries being used.
-We only support users which support ES2022, so updating to target ES2021 should not break any supported use-case.
-Any users which do not have at least ES2021 language feature support may need to transpile out some additional cases after this change.
-
-This should result in slightly reduced bundle size and slightly improved performance for users not transpiling these features out.
-No major impact is expected.
diff --git a/common/build/build-common/tsconfig.base.json b/common/build/build-common/tsconfig.base.json
index c252a63b1a15..9420d5c7d2c7 100644
--- a/common/build/build-common/tsconfig.base.json
+++ b/common/build/build-common/tsconfig.base.json
@@ -13,7 +13,7 @@
 		"pretty": true,
 		"sourceMap": true,
 		"strict": true,
-		"target": "ES2021",
+		"target": "ES2020",
 		"types": [],
 		// Enabling these compiler flags is necessary for typechecking compliance with semver as per https://www.semver-ts.org/
 		// See specifically https://www.semver-ts.org/formal-spec/5-compiler-considerations.html#strictness.
diff --git a/packages/common/driver-definitions/api-report/driver-definitions.legacy.alpha.api.md b/packages/common/driver-definitions/api-report/driver-definitions.legacy.alpha.api.md
index 7d8a99a691de..1ad7ec6861b9 100644
--- a/packages/common/driver-definitions/api-report/driver-definitions.legacy.alpha.api.md
+++ b/packages/common/driver-definitions/api-report/driver-definitions.legacy.alpha.api.md
@@ -70,7 +70,7 @@ export enum FileMode {
 }
 
 // @alpha (undocumented)
-export type FiveDaysMs = 432_000_000;
+export type FiveDaysMs = 432000000;
 
 // @alpha
 export interface IAnyDriverError extends Omit<IDriverErrorBase, "errorType"> {