diff --git a/cocos/core/global-exports.ts b/cocos/core/global-exports.ts
index 25a4e32a6a2..0e59bf5bd68 100644
--- a/cocos/core/global-exports.ts
+++ b/cocos/core/global-exports.ts
@@ -46,7 +46,7 @@ if (DEV) {
     legacyCC._Test = {};
 }
 
-const engineVersion = '3.8.5';
+const engineVersion = '3.8.4';
 
 /**
  * @en
diff --git a/cocos/tween/actions/action.ts b/cocos/tween/actions/action.ts
index 9b225fd2700..d585f37493e 100644
--- a/cocos/tween/actions/action.ts
+++ b/cocos/tween/actions/action.ts
@@ -52,7 +52,7 @@ export abstract class Action {
     protected target: unknown = null;
 
     /**
-     * The `workerTarget` was added from Cocos Creator 3.8.5 and it's used for nest `Tween` functionality.
+     * The `workerTarget` was added from Cocos Creator 3.8.4 and it's used for nest `Tween` functionality.
      * It stores the target of sub-tween and its value may be different from `target`.
      *
      * Example 1:
diff --git a/cocos/tween/tween.ts b/cocos/tween/tween.ts
index ab9967a3f81..5de19ea3b9e 100644
--- a/cocos/tween/tween.ts
+++ b/cocos/tween/tween.ts
@@ -60,12 +60,12 @@ export interface ITweenCustomProperty<Value> {
     value: MaybeUnionStringNumber<Value> | (() => MaybeUnionStringNumber<Value>);
     progress?: TweenCustomProgress;
     easing?: TweenCustomEasing;
-    convert?: ExtendsReturnResultOrNever<Value, string, (v: string) => number | string>;   // Supported from v3.8.5
-    clone?: ExtendsReturnResultOrNever<Value, object, (v: Value) => Value>; // Supported from v3.8.5
-    add?: (a: Value, b: Value) => Value; // Supported from v3.8.5
-    sub?: (a: Value, b: Value) => Value; // Supported from v3.8.5
-    legacyProgress?: ExtendsReturnResultOrNever<Value, object, boolean>;    // Supported from v3.8.5, the default value is true for compatiblity
-    toFixed?: ExtendsReturnResultOrNever<Value, string, number>;            // Supported from v3.8.5
+    convert?: ExtendsReturnResultOrNever<Value, string, (v: string) => number | string>;   // Supported from v3.8.4
+    clone?: ExtendsReturnResultOrNever<Value, object, (v: Value) => Value>; // Supported from v3.8.4
+    add?: (a: Value, b: Value) => Value; // Supported from v3.8.4
+    sub?: (a: Value, b: Value) => Value; // Supported from v3.8.4
+    legacyProgress?: ExtendsReturnResultOrNever<Value, object, boolean>;    // Supported from v3.8.4, the default value is true for compatiblity
+    toFixed?: ExtendsReturnResultOrNever<Value, string, number>;            // Supported from v3.8.4
     onStart?: (param: ITweenCustomPropertyStartParameter<Value>) => void;
     onStop?: () => void;
     onComplete?: () => void;
diff --git a/native/cocos/cocos-version.h b/native/cocos/cocos-version.h
index 510c8e0eb46..d7dbb25f319 100644
--- a/native/cocos/cocos-version.h
+++ b/native/cocos/cocos-version.h
@@ -23,11 +23,11 @@ THE SOFTWARE.
 ****************************************************************************/
 #pragma once
 
-#define COCOS_MAJOR_VERSION     3
-#define COCOS_MINJOR_VERSION    8
-#define COCOS_PATCH_VERSION     5
-#define COCOS_VERSION_STRING    "3.8.5"
-#define COCOS_VERSION_DEFINED   1
-#define COCOS_VERSION           30805
+#define COCOS_MAJOR_VERSION   3
+#define COCOS_MINJOR_VERSION  8
+#define COCOS_PATCH_VERSION   4
+#define COCOS_VERSION_STRING  "3.8.4"
+#define COCOS_VERSION_DEFINED 1
+#define COCOS_VERSION         30804
 
 // #define COCOS_PRE_RELEASE       "release"
diff --git a/package-lock.json b/package-lock.json
index d278a273821..e6002deb004 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,12 +1,12 @@
 {
   "name": "cocos-creator",
-  "version": "3.8.5",
+  "version": "3.8.4",
   "lockfileVersion": 3,
   "requires": true,
   "packages": {
     "": {
       "name": "cocos-creator",
-      "version": "3.8.5",
+      "version": "3.8.4",
       "hasInstallScript": true,
       "license": "MIT",
       "dependencies": {
diff --git a/package.json b/package.json
index 3ac577c98fd..027050cb83b 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "cocos-creator",
-  "version": "3.8.5",
+  "version": "3.8.4",
   "description": "Cocos Creator is a cross-platform 2D & 3D game engine written in C++ and TypeScript, licensed under MIT.",
   "homepage": "http://www.cocos.com",
   "license": "MIT",