diff --git a/.github/workflows/rust.yml b/.github/workflows/rust.yml
index 11a99d3..2bc9eb3 100644
--- a/.github/workflows/rust.yml
+++ b/.github/workflows/rust.yml
@@ -118,6 +118,8 @@ jobs:
         commit: ${{ fromJSON(needs.commit_list.outputs.commits) }}
     env:
       LANDLOCK_CRATE_TEST_ABI: 1
+      # $CARGO is used by landlock-test-tools/test-rust.sh
+      CARGO: rustup run stable cargo
     steps:
     - name: Install Rust stable
       run: |
@@ -130,7 +132,7 @@ jobs:
         ref: ${{ matrix.commit }}
 
     - name: Run tests
-      run: rustup run stable cargo test --verbose
+      run: $CARGO test --verbose
 
     - name: Clone Landlock test tools
       uses: actions/checkout@v3
@@ -138,7 +140,7 @@ jobs:
         repository: landlock-lsm/landlock-test-tools
         path: landlock-test-tools
         fetch-depth: 0
-        ref: ab616e087cffa4b6716ff026e589d0317e19aaa4 # v1.0.0
+        ref: test
 
     - name: Run tests against Linux 5.10
       run: ./landlock-test-tools/test-rust.sh linux-5.10 0