diff --git a/src/MessagePipe.Unity/Assets/Plugins/MessagePipe.VContainer/package.json b/src/MessagePipe.Unity/Assets/Plugins/MessagePipe.VContainer/package.json
index 0656698..2aca8ac 100644
--- a/src/MessagePipe.Unity/Assets/Plugins/MessagePipe.VContainer/package.json
+++ b/src/MessagePipe.Unity/Assets/Plugins/MessagePipe.VContainer/package.json
@@ -1,7 +1,7 @@
 {
     "name": "com.cysharp.messagepipe.vcontainer",
     "displayName": "MessagePipe.VContainer",
-    "version": "1.0.0",
+    "version": "0.0.1",
     "unity": "2018.4",
     "description": "MessagePipe Runtime support for VContainer.",
     "keywords": [ "pubsub", "event", "Scripting", "DI" ],
diff --git a/src/MessagePipe.Unity/Assets/Plugins/MessagePipe.Zenject/package.json b/src/MessagePipe.Unity/Assets/Plugins/MessagePipe.Zenject/package.json
index 84b201b..dd67309 100644
--- a/src/MessagePipe.Unity/Assets/Plugins/MessagePipe.Zenject/package.json
+++ b/src/MessagePipe.Unity/Assets/Plugins/MessagePipe.Zenject/package.json
@@ -1,7 +1,7 @@
 {
     "name": "com.cysharp.messagepipe.zenject",
     "displayName": "MessagePipe.Zenject",
-    "version": "1.0.0",
+    "version": "0.0.1",
     "unity": "2018.4",
     "description": "MessagePipe Runtime support for Zenject.",
     "keywords": [ "pubsub", "event", "Scripting", "DI" ],
diff --git a/src/MessagePipe.Unity/Assets/Plugins/MessagePipe/package.json b/src/MessagePipe.Unity/Assets/Plugins/MessagePipe/package.json
index c4b00a5..2b82239 100644
--- a/src/MessagePipe.Unity/Assets/Plugins/MessagePipe/package.json
+++ b/src/MessagePipe.Unity/Assets/Plugins/MessagePipe/package.json
@@ -1,7 +1,7 @@
 {
     "name": "com.cysharp.messagepipe",
     "displayName": "MessagePipe",
-    "version": "1.0.0",
+    "version": "0.0.1",
     "unity": "2018.4",
     "description": "High performance messaging pipeline.",
     "keywords": [ "pubsub", "event", "Scripting", "DI" ],