diff --git a/.github/workflows/release-bindings.yml b/.github/workflows/release-bindings.yml
index 0ef3eb7b..b330af27 100644
--- a/.github/workflows/release-bindings.yml
+++ b/.github/workflows/release-bindings.yml
@@ -38,7 +38,7 @@ jobs:
           git clone --depth 1 --branch v0.1.0 https://github.com/vinary-tree/llattice.git "$parent/llattice"
           git clone --depth 1 --branch v4.0.0-rc.6 https://github.com/vinary-tree/liblevenshtein-rust.git "$parent/liblevenshtein-rust"
           git clone --depth 1 --branch v4.0.0-rc.6 https://github.com/vinary-tree/vinary-tree-interop.git "$parent/vinary-tree-interop"
-      - uses: dtolnay/rust-toolchain@1.95
+      - uses: dtolnay/rust-toolchain@1.120
         with: { components: clippy }
       - name: Verify tag, ABI, CRUD, and one long-lived snapshot
         shell: bash
@@ -111,7 +111,7 @@ jobs:
           git clone --depth 1 --branch v0.1.0 https://github.com/vinary-tree/llattice.git "$parent/llattice"
           git clone --depth 1 --branch v4.0.0-rc.6 https://github.com/vinary-tree/liblevenshtein-rust.git "$parent/liblevenshtein-rust"
           git clone --depth 1 --branch v4.0.0-rc.6 https://github.com/vinary-tree/vinary-tree-interop.git "$parent/vinary-tree-interop"
-      - uses: dtolnay/rust-toolchain@1.95
+      - uses: dtolnay/rust-toolchain@1.120
         with: { targets: "${{ matrix.target }}" }
       - run: cargo build --release --target "${{ matrix.target }}" --features ffi
       - name: Stage relocatable archive and managed-runtime libraries
@@ -181,7 +181,7 @@ jobs:
           git clone --depth 1 --branch v4.0.0-rc.6
           https://github.com/vinary-tree/vinary-tree-interop.git
           .release-deps/vinary-tree-interop
-      - uses: dtolnay/rust-toolchain@1.95
+      - uses: dtolnay/rust-toolchain@1.120
       - name: Resolve path dependencies through their exact public versions
         shell: bash
         run: |
@@ -239,7 +239,7 @@ jobs:
           git clone --depth 1 --branch v0.1.0 https://github.com/vinary-tree/llattice.git "$parent/llattice"
           git clone --depth 1 --branch v4.0.0-rc.6 https://github.com/vinary-tree/liblevenshtein-rust.git "$parent/liblevenshtein-rust"
           git clone --depth 1 --branch v4.0.0-rc.6 https://github.com/vinary-tree/vinary-tree-interop.git "$parent/vinary-tree-interop"
-      - uses: dtolnay/rust-toolchain@1.95
+      - uses: dtolnay/rust-toolchain@1.120
       - uses: actions/setup-java@v5
         with: { distribution: temurin, java-version: "25", cache: gradle }
       - uses: actions/download-artifact@v7
@@ -280,7 +280,7 @@ jobs:
           git clone --depth 1 --branch v0.1.0 https://github.com/vinary-tree/llattice.git "$parent/llattice"
           git clone --depth 1 --branch v4.0.0-rc.6 https://github.com/vinary-tree/liblevenshtein-rust.git "$parent/liblevenshtein-rust"
           git clone --depth 1 --branch v4.0.0-rc.6 https://github.com/vinary-tree/vinary-tree-interop.git "$parent/vinary-tree-interop"
-      - uses: dtolnay/rust-toolchain@1.95
+      - uses: dtolnay/rust-toolchain@1.120
       - uses: actions/setup-java@v5
         with: { distribution: temurin, java-version: "25" }
       - uses: DeLaGuardo/setup-clojure@13.6.1
@@ -445,7 +445,7 @@ jobs:
         with: { persist-credentials: false }
       - run: git clone --depth 1 --branch v4.0.0-rc.6 https://github.com/vinary-tree/vinary-tree-interop.git ../vinary-tree-interop
       - run: git clone --depth 1 --branch v0.1.0 https://github.com/vinary-tree/llattice.git ../llattice
-      - uses: dtolnay/rust-toolchain@1.95
+      - uses: dtolnay/rust-toolchain@1.120
       - uses: fortran-lang/setup-fpm@v10
       - name: Validate the numeric 4.0.0 candidates without publication
         shell: bash
@@ -530,7 +530,7 @@ jobs:
           git clone --depth 1 --branch v0.1.0 https://github.com/vinary-tree/llattice.git "$parent/llattice"
           git clone --depth 1 --branch v4.0.0-rc.6 https://github.com/vinary-tree/liblevenshtein-rust.git "$parent/liblevenshtein-rust"
           git clone --depth 1 --branch v4.0.0-rc.6 https://github.com/vinary-tree/vinary-tree-interop.git "$parent/vinary-tree-interop"
-      - uses: dtolnay/rust-toolchain@1.95
+      - uses: dtolnay/rust-toolchain@1.120
       - name: Authenticate with crates.io
         id: crates-io-auth
         uses: rust-lang/crates-io-auth-action@v1