diff --git a/CHANGELOG.md b/CHANGELOG.md
index 195e96b..d307032 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,10 +1,8 @@
-## 3.0.2
-
-* Upgrade to `built_value` 5.1.0.
-
 ## 3.0.1
 
+* Upgrade to `built_value` 5.1.0.
 * Export the `literalNum` function.
+* **BUG FIX**: `literal` supports a `Map`.
 
 ## 3.0.0
 
diff --git a/lib/src/specs/expression/literal.dart b/lib/src/specs/expression/literal.dart
index b988250..b407b5a 100644
--- a/lib/src/specs/expression/literal.dart
+++ b/lib/src/specs/expression/literal.dart
@@ -20,6 +20,9 @@ Expression literal(Object literal, {Expression onError(Object value)}) {
   if (literal is List) {
     return literalList(literal);
   }
+  if (literal is Map) {
+    return literalMap(literal);
+  }
   if (literal == null) {
     return literalNull;
   }
diff --git a/pubspec.yaml b/pubspec.yaml
index bd3c33b..6514cf6 100644
--- a/pubspec.yaml
+++ b/pubspec.yaml
@@ -1,5 +1,5 @@
 name: code_builder
-version: 3.0.2
+version: 3.0.1
 description: A fluent API for generating Dart code
 author: Dart Team <misc@dartlang.org>
 homepage: https://github.com/dart-lang/code_builder
@@ -7,10 +7,6 @@ homepage: https://github.com/dart-lang/code_builder
 environment:
   sdk: '>=2.0.0-dev <2.0.0'
 
-web:
-  compiler:
-    debug: dartdevc
-
 dependencies:
   built_collection: '>=1.0.0 <4.0.0'
   built_value: ^5.1.0
@@ -23,7 +19,3 @@ dev_dependencies:
   dart_style: ^1.0.0
   source_gen: '^0.7.0'
   test: ^0.12.0
-
-transformers:
-  - test/pub_serve:
-      $include: test/**_test.dart