diff --git a/.release-please-manifest.json b/.release-please-manifest.json
index cf533f280671..1778b2a65334 100644
--- a/.release-please-manifest.json
+++ b/.release-please-manifest.json
@@ -1,3 +1,3 @@
 {
-  ".": "4.0.1"
+  ".": "4.0.2"
 }
diff --git a/CHANGELOG.md b/CHANGELOG.md
index 3f95593a6664..8a36997ca322 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,13 @@
 # Changelog
 
+## [4.0.2](https://github.com/AztecProtocol/aztec-packages/compare/v4.0.1...v4.0.2) (2026-02-27)
+
+
+### Bug Fixes
+
+* handle scientific notation in bigintConfigHelper ([#20929](https://github.com/AztecProtocol/aztec-packages/issues/20929)) ([0ed0a06](https://github.com/AztecProtocol/aztec-packages/commit/0ed0a0680c42ca88e650bffd0f2eee3ac93c3f5a))
+* handle scientific notation in bigintConfigHelper ([#20929](https://github.com/AztecProtocol/aztec-packages/issues/20929)) ([1fa71ae](https://github.com/AztecProtocol/aztec-packages/commit/1fa71ae18d94c4dbfee74b07c23b932e9236dbc7))
+
 ## [4.0.1](https://github.com/AztecProtocol/aztec-packages/compare/v4.0.0...v4.0.1) (2026-02-26)