diff --git a/.github/workflows/rust-check.yml b/.github/workflows/rust-check.yml
index e672e0a06..eac3eadd5 100644
--- a/.github/workflows/rust-check.yml
+++ b/.github/workflows/rust-check.yml
@@ -20,7 +20,7 @@ on:
 
 jobs:
   check:
-    name: ${{ matrix.os }} / 1.82
+    name: ${{ matrix.os }} / 1.85
     runs-on: ${{ matrix.os }}
     strategy:
       fail-fast: false
@@ -32,7 +32,7 @@ jobs:
           submodules: recursive
       - uses: dtolnay/rust-toolchain@stable
         with:
-          toolchain: "1.82"
+          toolchain: "1.85"
           components: rustfmt, clippy
       - uses: Swatinem/rust-cache@v2
       - run: cargo fmt --all -- --check
diff --git a/.github/workflows/wasm-bundle-check.yml b/.github/workflows/wasm-bundle-check.yml
index 70c8e598d..ee9ccbcca 100644
--- a/.github/workflows/wasm-bundle-check.yml
+++ b/.github/workflows/wasm-bundle-check.yml
@@ -21,7 +21,7 @@ jobs:
           submodules: recursive
       - uses: dtolnay/rust-toolchain@stable
         with:
-          toolchain: "1.82"
+          toolchain: "1.85"
           targets: wasm32-unknown-unknown
       - uses: Swatinem/rust-cache@v2
         with:
diff --git a/README.md b/README.md
index 96fbf4dce..8b3f45938 100644
--- a/README.md
+++ b/README.md
@@ -447,8 +447,8 @@ bun run mcp:dev            # Run MCP server from source
 OpenPencil 正在进行全量 Rust 化。当前状态见 `openpencil-docs/superpowers/specs/2026-05-02-rust-ification-kickoff.md`（v7 FROZEN）。
 
 ```bash
-# Install Rust toolchain (rust-toolchain.toml auto-pins 1.82)
-rustup toolchain install 1.82
+# Install Rust toolchain (rust-toolchain.toml auto-pins 1.85)
+rustup toolchain install 1.85
 rustup target add wasm32-unknown-unknown
 
 # build / test / lint