diff --git a/CHANGELOG.md b/CHANGELOG.md
index 47ee31a..5ceb27d 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,9 @@
 # Changelog
 
+## 0.4.9
+
+* Remove null check for dynamic type in schema generation
+
 ## 0.4.8
 
 * Add default value for schema validation constants
diff --git a/lib/src/generators/schema.dart b/lib/src/generators/schema.dart
index 6dd30db..e7a0b19 100644
--- a/lib/src/generators/schema.dart
+++ b/lib/src/generators/schema.dart
@@ -441,7 +441,7 @@ class SchemaGenerator extends BaseGenerator {
               'dynamic';
           c += "$unionName ${nullable ? '?' : ''} $name,\n\n";
         } else {
-          c += "dynamic ${nullable ? '?' : ''} $name,\n\n";
+          c += "dynamic $name,\n\n";
         }
         file.writeAsStringSync(c, mode: FileMode.append);
       },
diff --git a/pubspec.yaml b/pubspec.yaml
index 8b19086..facd5b1 100644
--- a/pubspec.yaml
+++ b/pubspec.yaml
@@ -1,6 +1,6 @@
 name: openapi_spec
 description: OpenAPI Specification generator using native Dart code, as well as an all-in-one parser of existing specifications.
-version: 0.4.8
+version: 0.4.9
 maintainer: Taza Technology LLC
 repository: https://github.com/tazatechnology/openapi_spec
 issue_tracker: https://github.com/tazatechnology/openapi_spec/issues