diff --git a/README.md b/README.md
index 1b3873e..927e41c 100644
--- a/README.md
+++ b/README.md
@@ -23,9 +23,9 @@
 ### 1: Download the repo and drop it into folder `Assets`
 ### 2: Add the line below to `Packages/manifest.json`
 
-for version `3.1.8`
+for version `3.1.9`
 ```csharp
-"com.virtuesky.sunflower":"https://github.com/VirtueSky/sunflower.git#3.1.8",
+"com.virtuesky.sunflower":"https://github.com/VirtueSky/sunflower.git#3.1.9",
 ```
 
 ## Includes modules
diff --git a/VirtueSky/ControlPanel/ConstantPackage.cs b/VirtueSky/ControlPanel/ConstantPackage.cs
index 11cbbe4..b8b6611 100644
--- a/VirtueSky/ControlPanel/ConstantPackage.cs
+++ b/VirtueSky/ControlPanel/ConstantPackage.cs
@@ -2,7 +2,7 @@
 {
     public class ConstantPackage
     {
-        public const string VersionSunflower = "3.1.8";
+        public const string VersionSunflower = "3.1.9";
         public const string PackageNameInAppPurchase = "com.unity.purchasing";
         public const string MaxVersionInAppPurchase = "4.12.2";
         public const string PackageNameNewtonsoftJson = "com.unity.nuget.newtonsoft-json";
diff --git a/package.json b/package.json
index 76ab063..df6c2ec 100644
--- a/package.json
+++ b/package.json
@@ -2,7 +2,7 @@
   "name": "com.virtuesky.sunflower",
   "displayName": "Sunflower",
   "description": "Core ScriptableObject Architecture for building Unity games",
-  "version": "3.1.8",
+  "version": "3.1.9",
   "unity": "2022.3",
   "category": "virtuesky",
   "license": "MIT",