diff --git a/.github/workflows/argon2.yml b/.github/workflows/argon2.yml
index 2d572273..e472a700 100644
--- a/.github/workflows/argon2.yml
+++ b/.github/workflows/argon2.yml
@@ -42,7 +42,7 @@ jobs:
   minimal-versions:
     uses: RustCrypto/actions/.github/workflows/minimal-versions.yml@master
     with:
-        working-directory: ${{ github.workflow }}
+      working-directory: ${{ github.workflow }}
 
   test:
     runs-on: ubuntu-latest
@@ -75,6 +75,14 @@ jobs:
       - run: cargo test
       - run: cargo test --all-features
 
+  careful:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - uses: dtolnay/rust-toolchain@nightly
+      - run: cargo install cargo-careful
+      - run: cargo careful test --all-features
+
   cross:
     strategy:
       matrix: