diff --git a/packages/body_parser/CHANGELOG.md b/packages/body_parser/CHANGELOG.md
index 2a909a7..7e5b8d3 100644
--- a/packages/body_parser/CHANGELOG.md
+++ b/packages/body_parser/CHANGELOG.md
@@ -3,7 +3,7 @@
 ## 5.0.0-beta.1
 
 * Require Dart >= 3.0
-* Updated `belatuk_http_server` to 3.0.0
+* Updated `belatuk_http_server` to 4.0.0
 
 ## 4.0.1
 
diff --git a/packages/combinator/CHANGELOG.md b/packages/combinator/CHANGELOG.md
index 01f140d..9f80cf9 100644
--- a/packages/combinator/CHANGELOG.md
+++ b/packages/combinator/CHANGELOG.md
@@ -1,5 +1,10 @@
 # Change Log
 
+## 5.0.0-beta.1
+
+* Require Dart >= 3.0
+* Updated `belatuk_code_buffer` to 5.0.0
+
 ## 4.0.0
 
 * Require Dart >= 2.17
diff --git a/packages/combinator/pubspec.yaml b/packages/combinator/pubspec.yaml
index c56b08a..ba30c0b 100644
--- a/packages/combinator/pubspec.yaml
+++ b/packages/combinator/pubspec.yaml
@@ -1,11 +1,11 @@
 name: belatuk_combinator
-version: 4.0.0
+version: 5.0.0-beta.1
 description: Packrat parser combinators that support static typing, generics, file spans, memoization, and more.
 homepage: https://github.com/dart-backend/belatuk-common-utilities/tree/main/packages/combinator
 environment:
-  sdk: '>=2.17.0 <3.0.0'
+  sdk: '>=3.0.0-290.3.beta <4.0.0'
 dependencies:
-  belatuk_code_buffer: ^4.0.0
+  belatuk_code_buffer: ^5.0.0-beta.1
   matcher: ^0.12.10
   source_span: ^1.8.1
   string_scanner: ^1.1.0