diff --git a/CHANGELOG.md b/CHANGELOG.md
index ce041bc..043c412 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,7 @@
+# 0.9.5
+
+* Add support for the WebAssembly format.
+
 # 0.9.4
 
 * Updated Dart SDK requirement to `>= 1.8.3 <2.0.0`
diff --git a/lib/src/default_extension_map.dart b/lib/src/default_extension_map.dart
index e3ee44c..2b27bef 100644
--- a/lib/src/default_extension_map.dart
+++ b/lib/src/default_extension_map.dart
@@ -883,6 +883,7 @@
   'vxml': 'application/voicexml+xml',
   'w3d': 'application/x-director',
   'wad': 'application/x-doom',
+  'wasm': 'application/wasm',
   'wav': 'audio/x-wav',
   'wax': 'audio/x-ms-wax',
   'wbmp': 'image/vnd.wap.wbmp',
diff --git a/pubspec.yaml b/pubspec.yaml
index 0daf657..75f0457 100644
--- a/pubspec.yaml
+++ b/pubspec.yaml
@@ -1,5 +1,5 @@
 name: mime
-version: 0.9.4
+version: 0.9.5
 author: Dart Team <misc@dartlang.org>
 description: Helper-package for working with MIME.
 homepage: https://www.github.com/dart-lang/mime