diff --git a/src/Fable.Cli/CHANGELOG.md b/src/Fable.Cli/CHANGELOG.md
index bd3b72060..db5040bdd 100644
--- a/src/Fable.Cli/CHANGELOG.md
+++ b/src/Fable.Cli/CHANGELOG.md
@@ -11,6 +11,10 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 * [Python] Remove `$` sign when reporting an error from `assert_equal` and `assert_not_equal` (#3878) (by @joprice)
 
+### Fixed
+
+* [JS/TS] Fix escaping of `{` and `}` in FormattableString (#3890) (by @roboz0r)
+
 ## 4.20.0 - 2024-09-04
 
 ### Added
diff --git a/src/fable-library-ts/CHANGELOG.md b/src/fable-library-ts/CHANGELOG.md
index 33f3b8a63..c9f5ec329 100644
--- a/src/fable-library-ts/CHANGELOG.md
+++ b/src/fable-library-ts/CHANGELOG.md
@@ -7,6 +7,10 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ## Unreleased
 
+### Fixed
+
+* [JS/TS] Fix escaping of `{` and `}` in FormattableString (#3890) (by @roboz0r)
+
 ## 1.4.3 - 2024-09-04
 
 * [JS/TS] Fixed Decimal comparisons (#3884) (by @ncave)