diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index c374f4d4f..6ffb35ab3 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -33,7 +33,7 @@ jobs:
           echo "version=$msrv" >> "$GITHUB_OUTPUT"
 
       - name: Setup Rust
-        uses: actions-rust-lang/setup-rust-toolchain@166cdcfd11aee3cb47222f9ddb555ce30ddb9659
+        uses: actions-rust-lang/setup-rust-toolchain@ecabd13d1c56bd1345c230e542e9144811ad706f
         with:
           toolchain: ${{ steps.msrv.outputs.version }}
 
@@ -55,7 +55,7 @@ jobs:
           cache: "npm"
 
       - name: Setup Rust
-        uses: actions-rust-lang/setup-rust-toolchain@166cdcfd11aee3cb47222f9ddb555ce30ddb9659
+        uses: actions-rust-lang/setup-rust-toolchain@ecabd13d1c56bd1345c230e542e9144811ad706f
         with:
           toolchain: nightly,stable
           components: rustfmt,clippy
@@ -144,7 +144,7 @@ jobs:
           persist-credentials: false
 
       - name: Setup Rust
-        uses: actions-rust-lang/setup-rust-toolchain@166cdcfd11aee3cb47222f9ddb555ce30ddb9659
+        uses: actions-rust-lang/setup-rust-toolchain@ecabd13d1c56bd1345c230e542e9144811ad706f
         with:
           toolchain: stable
 
diff --git a/Cargo.toml b/Cargo.toml
index 758fa66f4..4bd668a98 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -18,7 +18,7 @@ agent-client-protocol-schema = { path = "agent-client-protocol-schema", version
 
 [workspace.lints.rust]
 future_incompatible = { level = "warn", priority = -1 }
-let-underscore = "warn"
+let_underscore = "warn"
 missing_debug_implementations = "warn"
 missing_docs = "warn"
 nonstandard_style = { level = "warn", priority = -1 }
diff --git a/agent-client-protocol-schema/Cargo.toml b/agent-client-protocol-schema/Cargo.toml
index c900c0624..6d1b2c387 100644
--- a/agent-client-protocol-schema/Cargo.toml
+++ b/agent-client-protocol-schema/Cargo.toml
@@ -6,7 +6,6 @@ edition = "2024"
 license = "Apache-2.0"
 description = "A protocol for standardizing communication between code editors and AI coding agents"
 repository = "https://github.com/agentclientprotocol/agent-client-protocol"
-homepage = "https://github.com/agentclientprotocol/agent-client-protocol"
 documentation = "https://docs.rs/agent-client-protocol-schema"
 readme = "../README.md"
 keywords = ["agent", "client", "protocol", "ai", "editor"]