diff --git a/CHANGELOG.md b/CHANGELOG.md
index be608c7e558..1d2e0bf90e2 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -10,6 +10,7 @@ Docs: https://docs.openclaw.ai
 
 ### Fixes
 
+- ACPX/runtime: derive the bundled ACPX expected version from the extension package metadata instead of hardcoding a separate literal, so plugin-local ACPX installs stop drifting out of health-check parity after version bumps. (#49089) Thanks @jiejiesks and @vincentkoc.
 - Gateway/auth: make local-direct `trusted-proxy` fallback require the configured shared token instead of silently authenticating same-host callers, while keeping same-host reverse proxy identity-header flows on the normal trusted-proxy path. Thanks @zhangning-agent and @vincentkoc.
 - Agents/sandbox: honor `tools.sandbox.tools.alsoAllow`, let explicit sandbox re-allows remove matching built-in default-deny tools, and keep sandbox explain/error guidance aligned with the effective sandbox tool policy. (#54492) Thanks @ngutman.
 - LINE/ACP: add current-conversation binding and inbound binding-routing parity so `/acp spawn ... --thread here`, configured ACP bindings, and active conversation-bound ACP sessions work on LINE like the other conversation channels.
diff --git a/extensions/acpx/src/config.ts b/extensions/acpx/src/config.ts
index 6c831481f87..64c9329bed3 100644
--- a/extensions/acpx/src/config.ts
+++ b/extensions/acpx/src/config.ts
@@ -11,7 +11,6 @@ export type AcpxPermissionMode = (typeof ACPX_PERMISSION_MODES)[number];
 export const ACPX_NON_INTERACTIVE_POLICIES = ["deny", "fail"] as const;
 export type AcpxNonInteractivePermissionPolicy = (typeof ACPX_NON_INTERACTIVE_POLICIES)[number];
 
-export const ACPX_PINNED_VERSION = "0.3.1";
 export const ACPX_VERSION_ANY = "any";
 const ACPX_BIN_NAME = process.platform === "win32" ? "acpx.cmd" : "acpx";
 
@@ -58,6 +57,14 @@ export function resolveAcpxPluginRoot(moduleUrl: string = import.meta.url): stri
 }
 
 export const ACPX_PLUGIN_ROOT = resolveAcpxPluginRoot();
+const pluginPkg = JSON.parse(fs.readFileSync(path.join(ACPX_PLUGIN_ROOT, "package.json"), "utf8"));
+const acpxVersion: unknown = pluginPkg?.dependencies?.acpx;
+if (typeof acpxVersion !== "string" || acpxVersion.trim() === "") {
+  throw new Error(
+    `Could not read acpx version from ${path.join(ACPX_PLUGIN_ROOT, "package.json")} — expected a non-empty string at dependencies.acpx`
+  );
+}
+export const ACPX_PINNED_VERSION: string = acpxVersion.replace(/^[^0-9]*/, "");
 export const ACPX_BUNDLED_BIN = path.join(ACPX_PLUGIN_ROOT, "node_modules", ".bin", ACPX_BIN_NAME);
 export function buildAcpxLocalInstallCommand(version: string = ACPX_PINNED_VERSION): string {
   return `npm install --omit=dev --no-save --package-lock=false acpx@${version}`;