diff --git a/CHANGELOG.md b/CHANGELOG.md
index 158d6ff42..d79f4172d 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -8,6 +8,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 ## [Unreleased]
 
 ### Fixed
+- Upgraded `baseline-browser-mapping` to `2.11.21`. [#1645](https://github.com/sourcebot-dev/sourcebot/pull/1645)
 - Upgraded `smol-toml` to `1.8.0`. [#1644](https://github.com/sourcebot-dev/sourcebot/pull/1644)
 - Upgraded `hono` to `4.13.7`. [#1643](https://github.com/sourcebot-dev/sourcebot/pull/1643)
 - Upgraded `nodemailer` to `9.1.1`. [#1642](https://github.com/sourcebot-dev/sourcebot/pull/1642)
diff --git a/yarn.lock b/yarn.lock
index 3d40e0a72..6ea3fa18d 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -11339,21 +11339,12 @@ __metadata:
   languageName: node
   linkType: hard
 
-"baseline-browser-mapping@npm:^2.11.12":
-  version: 2.11.20
-  resolution: "baseline-browser-mapping@npm:2.11.20"
+"baseline-browser-mapping@npm:^2.11.12, baseline-browser-mapping@npm:^2.9.19":
+  version: 2.11.21
+  resolution: "baseline-browser-mapping@npm:2.11.21"
   bin:
     baseline-browser-mapping: dist/cli.cjs
-  checksum: 10c0/67588b7edafa4e6c52996ec4b96b6e007312961cefc5a179cb49232f6681a38ba68d4d43990081e9d0e1dcadcbd28f13105ee7dc3e43b267385d0beb14824ecc
-  languageName: node
-  linkType: hard
-
-"baseline-browser-mapping@npm:^2.9.19":
-  version: 2.10.13
-  resolution: "baseline-browser-mapping@npm:2.10.13"
-  bin:
-    baseline-browser-mapping: dist/cli.cjs
-  checksum: 10c0/3296604492f600927a9f519c81164522ac26456e63eb7b6816e39bfbb184494b48c58490639f2c0e35be97969d3a03613fddddbfdd3074710592369ed36957d5
+  checksum: 10c0/1110ca70b60de9fa673e6d71154cbb2752225c28e069266c2f455f5a26367efc0e5b47a52afba22c9ef1e06d56a6c81aa964dda1fbc66c487e65c18a7c1e11c4
   languageName: node
   linkType: hard