diff --git a/packages/agent/CHANGELOG.md b/packages/agent/CHANGELOG.md
index fb008594..02051862 100644
--- a/packages/agent/CHANGELOG.md
+++ b/packages/agent/CHANGELOG.md
@@ -1,5 +1,7 @@
 # Changelog
 
+## [Unreleased]
+
 ## [0.55.3] - 2026-02-27
 
 ## [0.55.2] - 2026-02-27
diff --git a/packages/ai/CHANGELOG.md b/packages/ai/CHANGELOG.md
index a58e6e23..b8ee0f44 100644
--- a/packages/ai/CHANGELOG.md
+++ b/packages/ai/CHANGELOG.md
@@ -1,5 +1,7 @@
 # Changelog
 
+## [Unreleased]
+
 ## [0.55.3] - 2026-02-27
 
 ## [0.55.2] - 2026-02-27
diff --git a/packages/coding-agent/CHANGELOG.md b/packages/coding-agent/CHANGELOG.md
index 2046046e..8948106a 100644
--- a/packages/coding-agent/CHANGELOG.md
+++ b/packages/coding-agent/CHANGELOG.md
@@ -1,5 +1,7 @@
 # Changelog
 
+## [Unreleased]
+
 ## [0.55.3] - 2026-02-27
 
 ### Fixed
diff --git a/packages/mom/CHANGELOG.md b/packages/mom/CHANGELOG.md
index a4340f01..a2ad270b 100644
--- a/packages/mom/CHANGELOG.md
+++ b/packages/mom/CHANGELOG.md
@@ -1,5 +1,7 @@
 # Changelog
 
+## [Unreleased]
+
 ## [0.55.3] - 2026-02-27
 
 ## [0.55.2] - 2026-02-27
diff --git a/packages/tui/CHANGELOG.md b/packages/tui/CHANGELOG.md
index d210b99f..5deb4181 100644
--- a/packages/tui/CHANGELOG.md
+++ b/packages/tui/CHANGELOG.md
@@ -1,5 +1,7 @@
 # Changelog
 
+## [Unreleased]
+
 ## [0.55.3] - 2026-02-27
 
 ## [0.55.2] - 2026-02-27
diff --git a/packages/web-ui/CHANGELOG.md b/packages/web-ui/CHANGELOG.md
index 2ca50101..1f3a9e46 100644
--- a/packages/web-ui/CHANGELOG.md
+++ b/packages/web-ui/CHANGELOG.md
@@ -1,5 +1,7 @@
 # Changelog
 
+## [Unreleased]
+
 ## [0.55.3] - 2026-02-27
 
 ## [0.55.2] - 2026-02-27