diff --git a/Kanna.podspec b/Kanna.podspec
index b4d9139..e994150 100644
--- a/Kanna.podspec
+++ b/Kanna.podspec
@@ -1,6 +1,6 @@
 Pod::Spec.new do |s|
   s.name             = "Kanna"
-  s.version          = "5.2.1"
+  s.version          = "5.2.2"
   s.summary          = "Kanna is an XML/HTML parser for iOS/macOS/watchOS/tvOS and Linux."
   s.homepage         = "https://github.com/tid-kijyun/Kanna"
   s.license          = 'MIT'
diff --git a/README.md b/README.md
index aef2c98..605c358 100644
--- a/README.md
+++ b/README.md
@@ -24,14 +24,14 @@ It was inspired by [Nokogiri](https://github.com/sparklemotion/nokogiri)(鋸).
 Add the following to your `Podfile`:
 ```ruby
 use_frameworks!
-pod 'Kanna', '~> 5.2.1'
+pod 'Kanna', '~> 5.2.2'
 ```
 
 #### Carthage
 Add the following to your `Cartfile`:
 
 ```ogdl
-github "tid-kijyun/Kanna" ~> 5.2.1
+github "tid-kijyun/Kanna" ~> 5.2.2
 ```
 
 For xcode 11.3 and earlier, the following settings are required.
@@ -58,7 +58,7 @@ import PackageDescription
 let package = Package(
     name: "YourProject",
     dependencies: [
-        .package(url: "https://github.com/tid-kijyun/Kanna.git", from: "5.2.1"),
+        .package(url: "https://github.com/tid-kijyun/Kanna.git", from: "5.2.2"),
     ],
     targets: [
         .target(
diff --git a/Sources/Kanna/Info.plist b/Sources/Kanna/Info.plist
index dde6a83..3b3c198 100644
--- a/Sources/Kanna/Info.plist
+++ b/Sources/Kanna/Info.plist
@@ -15,7 +15,7 @@
 	<key>CFBundlePackageType</key>
 	<string>FMWK</string>
 	<key>CFBundleShortVersionString</key>
-	<string>5.2.1</string>
+	<string>5.2.2</string>
 	<key>CFBundleVersion</key>
 	<string>$(CURRENT_PROJECT_VERSION)</string>
 	<key>NSHumanReadableCopyright</key>
diff --git a/Tests/KannaTests/Info.plist b/Tests/KannaTests/Info.plist
index b1380a3..f1ef26f 100644
--- a/Tests/KannaTests/Info.plist
+++ b/Tests/KannaTests/Info.plist
@@ -15,7 +15,7 @@
 	<key>CFBundlePackageType</key>
 	<string>BNDL</string>
 	<key>CFBundleShortVersionString</key>
-	<string>5.2.1</string>
+	<string>5.2.2</string>
 	<key>CFBundleVersion</key>
 	<string>1</string>
 </dict>