diff --git a/integrations/openclaw/marmot/README.md b/integrations/openclaw/marmot/README.md
index 20cac039..a0a658e8 100644
--- a/integrations/openclaw/marmot/README.md
+++ b/integrations/openclaw/marmot/README.md
@@ -11,7 +11,7 @@ local Unix socket. It never opens a QUIC connection, encrypts a record, or talks
 to a relay — all of that stays in `wn-agent`. It is the OpenClaw counterpart of
 the Python Hermes plugin in [`../../hermes/marmot/`](../../hermes/marmot).
 
-- Pinned OpenClaw SDK: **`openclaw@2026.6.8`** (`openclaw/plugin-sdk/*`).
+- Pinned OpenClaw SDK: **`openclaw@2026.6.11`** (`openclaw/plugin-sdk/*`).
 - Toolchain: TypeScript, pnpm, Node ≥ 22.19, Vitest.
 
 ## Install (release)
@@ -21,7 +21,7 @@ GitHub pre-releases. OpenClaw must already be installed with `openclaw` on `PATH
 
 Prerequisites:
 
-- OpenClaw **2026.6.8** or compatible (this plugin pins `openclaw@2026.6.8`)
+- OpenClaw **2026.6.11** or compatible (this plugin pins `openclaw@2026.6.11`)
 - Node ≥ 22.19
 - Linux x86_64, Linux arm64, macOS Apple Silicon, or macOS Intel
 
diff --git a/integrations/openclaw/marmot/test/readme-version.test.ts b/integrations/openclaw/marmot/test/readme-version.test.ts
new file mode 100644
index 00000000..d5e78e69
--- /dev/null
+++ b/integrations/openclaw/marmot/test/readme-version.test.ts
@@ -0,0 +1,26 @@
+import { readFileSync } from "node:fs";
+import { describe, expect, it } from "vitest";
+
+const pkg = JSON.parse(
+  readFileSync(new URL("../package.json", import.meta.url), "utf8"),
+) as {
+  devDependencies?: { openclaw?: string };
+};
+const pinnedOpenClaw = pkg.devDependencies?.openclaw;
+if (!pinnedOpenClaw) {
+  throw new Error("package.json must pin openclaw in devDependencies");
+}
+
+const readme = readFileSync(new URL("../README.md", import.meta.url), "utf8");
+const pinnedLabel = `openclaw@${pinnedOpenClaw}`;
+
+describe("README OpenClaw SDK pin", () => {
+  it("documents the pinned SDK version from package.json", () => {
+    expect(readme).toContain(`Pinned OpenClaw SDK: **\`${pinnedLabel}\`**`);
+  });
+
+  it("documents the OpenClaw prerequisite version from package.json", () => {
+    expect(readme).toContain(`OpenClaw **${pinnedOpenClaw}** or compatible`);
+    expect(readme).toContain(`this plugin pins \`${pinnedLabel}\``);
+  });
+});