diff --git a/example/pubspec.yaml b/example/pubspec.yaml
index 9f104745..2253a234 100644
--- a/example/pubspec.yaml
+++ b/example/pubspec.yaml
@@ -6,7 +6,7 @@ environment:
   sdk: ^3.7.0
 
 dependencies:
-  analyzer: ^8.1.1
+  analyzer: '>=8.1.1 <10.0.0'
   build: '>=3.0.0 <5.0.0'
   source_gen: any
 
diff --git a/source_gen/CHANGELOG.md b/source_gen/CHANGELOG.md
index 89786027..553f596c 100644
--- a/source_gen/CHANGELOG.md
+++ b/source_gen/CHANGELOG.md
@@ -1,3 +1,7 @@
+## 4.1.1
+
+- Allow `analyzer: '>=8.1.1 <10.0.0'`.
+
 ## 4.1.0
 
 - Add `TypeChecker.typeNamedLiterally`. It's like `TypeChecker.typeNamed`,
diff --git a/source_gen/pubspec.yaml b/source_gen/pubspec.yaml
index 42e33eac..05251106 100644
--- a/source_gen/pubspec.yaml
+++ b/source_gen/pubspec.yaml
@@ -1,5 +1,5 @@
 name: source_gen
-version: 4.1.0
+version: 4.1.1
 description: >-
   Source code generation builders and utilities for the Dart build system
 repository: https://github.com/dart-lang/source_gen/tree/master/source_gen
@@ -9,7 +9,7 @@ environment:
   sdk: ^3.7.0
 
 dependencies:
-  analyzer: ^8.1.1
+  analyzer: '>=8.1.1 <10.0.0'
   async: ^2.10.0
   build: '>=3.0.0 <5.0.0'
   dart_style: ^3.0.0