diff --git a/.github/workflows/rust.yml b/.github/workflows/rust.yml
index 0fb6c0f8..86504a7c 100644
--- a/.github/workflows/rust.yml
+++ b/.github/workflows/rust.yml
@@ -29,10 +29,12 @@ jobs:
     - uses: actions/checkout@v2
 
     - name: Install target
-      run: rustup target add wasm32-wasip1
+      run: |
+        rustup toolchain add 1.81.0
+        rustup target add --toolchain 1.81.0 wasm32-wasip1
 
     - name: Build (all features enabled)
-      run: cargo build --verbose --target wasm32-wasip1 -p russh
+      run: cargo +1.81.0 build --verbose --target wasm32-wasip1 -p russh
 
   Formatting:
     runs-on: ubuntu-24.04
diff --git a/russh-config/src/lib.rs b/russh-config/src/lib.rs
index 2637f290..a269d364 100644
--- a/russh-config/src/lib.rs
+++ b/russh-config/src/lib.rs
@@ -189,6 +189,7 @@ impl SshConfigStrExt for &str {
             && ((self.starts_with('\'') && self.ends_with('\''))
                 || (self.starts_with('\"') && self.ends_with('\"')))
         {
+            #[allow(clippy::indexing_slicing)] // length checked
             &self[1..self.len() - 1]
         } else {
             self
diff --git a/rust-toolchain.toml b/rust-toolchain.toml
index 22048ac5..8142c301 100644
--- a/rust-toolchain.toml
+++ b/rust-toolchain.toml
@@ -1,2 +1,2 @@
 [toolchain]
-channel = "1.70.0"
+channel = "1.73.0"