diff --git a/CHANGELOG.md b/CHANGELOG.md
index 90f8a8385..c177002cd 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,7 @@
+## 1.94.3-dev
+
+* Fix the span reported for standalone `%` expressions followed by whitespace.
+
 ## 1.94.2
 
 ### Command-Line Interface
diff --git a/lib/src/parse/stylesheet.dart b/lib/src/parse/stylesheet.dart
index 6885e2954..ec56b49f7 100644
--- a/lib/src/parse/stylesheet.dart
+++ b/lib/src/parse/stylesheet.dart
@@ -2154,11 +2154,12 @@ abstract class StylesheetParser extends Parser {
           length: operator.operator.length,
         );
       }
+      var operatorEnd = scanner.position;
       whitespace(consumeNewlines: true);
 
       if (operator == BinaryOperator.modulo && !_lookingAtExpression()) {
         addSingleExpression(StringExpression.plain(
-            '%', spanFromPosition(scanner.position - 1)));
+            '%', spanFromPosition(operatorEnd - 1, operatorEnd)));
       } else {
         operators.add(operator);
         operands.add(singleExpression);
diff --git a/pkg/sass-parser/CHANGELOG.md b/pkg/sass-parser/CHANGELOG.md
index 068c5ddf7..2b9a16715 100644
--- a/pkg/sass-parser/CHANGELOG.md
+++ b/pkg/sass-parser/CHANGELOG.md
@@ -1,3 +1,7 @@
+## 0.4.36-dev
+
+* No user-visible changes.
+
 ## 0.4.35
 
 * No user-visible changes.
diff --git a/pkg/sass-parser/package.json b/pkg/sass-parser/package.json
index 605de6a01..57e4b0ec9 100644
--- a/pkg/sass-parser/package.json
+++ b/pkg/sass-parser/package.json
@@ -1,6 +1,6 @@
 {
   "name": "sass-parser",
-  "version": "0.4.35",
+  "version": "0.4.36-dev",
   "description": "A PostCSS-compatible wrapper of the official Sass parser",
   "repository": "sass/dart-sass",
   "author": "Google Inc.",
diff --git a/pkg/sass_api/CHANGELOG.md b/pkg/sass_api/CHANGELOG.md
index d12cd187f..4c5f5258d 100644
--- a/pkg/sass_api/CHANGELOG.md
+++ b/pkg/sass_api/CHANGELOG.md
@@ -1,3 +1,7 @@
+## 16.0.3-dev
+
+* No user-visible changes.
+
 ## 16.0.2
 
 * No user-visible changes.
diff --git a/pkg/sass_api/pubspec.yaml b/pkg/sass_api/pubspec.yaml
index 08a81f108..e1fa902ba 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: 16.0.2
+version: 16.0.3-dev
 description: Additional APIs for Dart Sass.
 homepage: https://github.com/sass/dart-sass
 
@@ -10,7 +10,7 @@ environment:
   sdk: ">=3.6.0 <4.0.0"
 
 dependencies:
-  sass: 1.94.2
+  sass: 1.94.3
 
 dev_dependencies:
   dartdoc: ">=8.0.14 <10.0.0"
diff --git a/pubspec.yaml b/pubspec.yaml
index 6fb8dec60..48ff0a524 100644
--- a/pubspec.yaml
+++ b/pubspec.yaml
@@ -1,5 +1,5 @@
 name: sass
-version: 1.94.2
+version: 1.94.3-dev
 description: A Sass implementation in Dart.
 homepage: https://github.com/sass/dart-sass
 
@@ -45,7 +45,7 @@ dev_dependencies:
   grinder: ^0.9.0
   node_preamble: ^2.0.2
   lints: ">=4.0.0 <7.0.0"
-  protoc_plugin: ">=22.0.1 <25.0.0"
+  protoc_plugin: ">=22.0.1 <24.0.0"
   pub_api_client: ">=2.1.1 <4.0.0"
   pubspec_parse: ^1.3.0
   test: ^1.16.7