diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index f58dbe4..404110f 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -19,20 +19,37 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v7
+      - name: Install Rust toolchain
+        uses: actions-rust-lang/setup-rust-toolchain@v1
+        with:
+          toolchain: 1.85.0
+          components: clippy, rustfmt
+          rustflags: ""
+          cache-shared-key: linux-ci
+          cache-save-if: ${{ github.ref == 'refs/heads/main' }}
+          cache-on-failure: false
       - name: Format
         run: cargo fmt --all --check
       - name: Clippy
-        run: cargo clippy --all-targets -- -D warnings
+        run: cargo clippy --locked --all-targets -- -D warnings
       - name: Tests
-        run: cargo test --workspace
+        run: cargo test --locked --workspace
 
   conformance:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v7
+      - name: Install Rust toolchain
+        uses: actions-rust-lang/setup-rust-toolchain@v1
+        with:
+          toolchain: 1.85.0
+          rustflags: ""
+          cache-shared-key: linux-ci
+          cache-save-if: false
+          cache-on-failure: false
       - name: Build runner and mock provider
-        run: cargo build --release --bin lpp-mock-provider --bin lpp-conformance-runner
+        run: cargo build --locked --bin lpp-mock-provider --bin lpp-conformance-runner
       - name: Validate fixture structure
-        run: ./target/release/lpp-conformance-runner --validate-only --fixtures conformance/fixtures/v1
+        run: ./target/debug/lpp-conformance-runner --validate-only --fixtures conformance/fixtures/v1
       - name: Run conformance against the mock provider
-        run: ./target/release/lpp-conformance-runner --provider ./target/release/lpp-mock-provider --fixtures conformance/fixtures/v1
+        run: ./target/debug/lpp-conformance-runner --provider ./target/debug/lpp-mock-provider --fixtures conformance/fixtures/v1