diff --git a/Bridgecraft.podspec b/Bridgecraft.podspec
index 6803108..b5bcf5a 100644
--- a/Bridgecraft.podspec
+++ b/Bridgecraft.podspec
@@ -1,6 +1,6 @@
 Pod::Spec.new do |s|
   s.name = 'Bridgecraft'
-  s.version = '0.3.0'
+  s.version = '0.4.0'
   s.license = 'MIT'
   s.summary = 'Generate Swift interface for ObjC bridging headers '
   s.description = <<-DESC
diff --git a/Bridgecraft/Info.plist b/Bridgecraft/Info.plist
index 9550793..30a04d9 100644
--- a/Bridgecraft/Info.plist
+++ b/Bridgecraft/Info.plist
@@ -17,9 +17,9 @@
 	<key>CFBundlePackageType</key>
 	<string>APPL</string>
 	<key>CFBundleShortVersionString</key>
-	<string>0.3.0</string>
+	<string>0.4.0</string>
 	<key>CFBundleVersion</key>
-	<string>8</string>
+	<string>9</string>
 	<key>LSMinimumSystemVersion</key>
 	<string>$(MACOSX_DEPLOYMENT_TARGET)</string>
 	<key>NSHumanReadableCopyright</key>
diff --git a/Bridgecraft/main.swift b/Bridgecraft/main.swift
index 3d959eb..425bfe3 100644
--- a/Bridgecraft/main.swift
+++ b/Bridgecraft/main.swift
@@ -9,7 +9,7 @@
 import Commander
 import Foundation
 
-let version = "0.3.0"
+let version = "0.4.0"
 
 let generate = command(
     Flag("assume-nonnull", description: "assume that all headers have been audited for nullability"),