diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 4aeb178c..ec0a3702 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -511,7 +511,7 @@ jobs:
 
           # The embedded compiler has a checked-in pubspec.yaml, so upgrade to
           # make sure we're releasing against the latest version of all deps.
-          pub upgrade
+          dart pub upgrade
 
           curl https://raw.githubusercontent.com/sass/dart-sass/${{ steps.version.outputs.version }}/CHANGELOG.md > CHANGELOG.md
 
diff --git a/CHANGELOG.md b/CHANGELOG.md
index a3c39343..9f530226 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,7 @@
+## 1.57.1
+
+* No user-visible changes.
+
 ## 1.57.0
 
 * Add a `split($string, $separator, $limit: null)` function to `sass:string`
diff --git a/pkg/sass_api/CHANGELOG.md b/pkg/sass_api/CHANGELOG.md
index a3dd2e76..e3855bec 100644
--- a/pkg/sass_api/CHANGELOG.md
+++ b/pkg/sass_api/CHANGELOG.md
@@ -1,3 +1,7 @@
+## 4.2.1
+
+* No user-visible changes.
+
 ## 4.2.0
 
 * No user-visible changes.
diff --git a/pkg/sass_api/pubspec.yaml b/pkg/sass_api/pubspec.yaml
index a2cae9e3..a016566e 100644
--- a/pkg/sass_api/pubspec.yaml
+++ b/pkg/sass_api/pubspec.yaml
@@ -2,7 +2,7 @@ name: sass_api
 # Note: Every time we add a new Sass AST node, we need to bump the *major*
 # version because it's a breaking change for anyone who's implementing the
 # visitor interface(s).
-version: 4.2.0
+version: 4.2.1
 description: Additional APIs for Dart Sass.
 homepage: https://github.com/sass/dart-sass
 
@@ -10,7 +10,7 @@ environment:
   sdk: ">=2.17.0 <3.0.0"
 
 dependencies:
-  sass: 1.57.0
+  sass: 1.57.1
 
 dev_dependencies:
   dartdoc: ^5.0.0
diff --git a/pubspec.yaml b/pubspec.yaml
index 486bd9c2..fad07270 100644
--- a/pubspec.yaml
+++ b/pubspec.yaml
@@ -1,5 +1,5 @@
 name: sass
-version: 1.57.0
+version: 1.57.1
 description: A Sass implementation in Dart.
 homepage: https://github.com/sass/dart-sass