diff --git a/BigInt-test-plan.md b/BigInt-test-plan.md
index 4336457..f73eb0f 100644
--- a/BigInt-test-plan.md
+++ b/BigInt-test-plan.md
@@ -4,7 +4,7 @@
   - [x] ToPrimitive [[merged](https://github.com/tc39/test262/commit/dafde72971845dc6f2da7549f0688ff2d2fe3d01)]
   - [ ] ToBoolean (@thejoshwolfe)
   - [x] ToNumber [[merged](https://github.com/tc39/test262/commit/dafde72971845dc6f2da7549f0688ff2d2fe3d01)]
-  - [ ] ToString (@thejoshwolfe)
+  - [x] ToString [[merged](https://github.com/tc39/test262/commit/f83adad4bd1e2005401fb7791fa86f8cf749908e)]
   - [ ] ToObject (@thejoshwolfe)
   - [ ] ToNumeric (@thejoshwolfe)
   - [ ] RequireObjectCoercible (@thejoshwolfe)