diff --git a/.github/workflows/ansi-x963-kdf.yml b/.github/workflows/ansi-x963-kdf.yml
index 03eb402..0f4db49 100644
--- a/.github/workflows/ansi-x963-kdf.yml
+++ b/.github/workflows/ansi-x963-kdf.yml
@@ -3,6 +3,7 @@ name: ansi-x963-kdf
 on:
   pull_request:
     paths:
+      - ".github/workflows/ansi-x963-kdf.yml"
       - "ansi-x963-kdf/**"
       - "Cargo.*"
   push:
@@ -47,7 +48,6 @@ jobs:
       - uses: dtolnay/rust-toolchain@master
         with:
           toolchain: ${{ matrix.rust }}
-      - run: cargo check --all-features
-      - run: cargo test --no-default-features
-      - run: cargo test
-      - run: cargo test --all-features
+      - uses: RustCrypto/actions/cargo-hack-install@master
+      - run: cargo hack test --feature-powerset
+      - run: cargo test --release --all-features
diff --git a/.github/workflows/bake-kdf.yml b/.github/workflows/bake-kdf.yml
index a012fa9..6d03885 100644
--- a/.github/workflows/bake-kdf.yml
+++ b/.github/workflows/bake-kdf.yml
@@ -3,6 +3,7 @@ name: bake-kdf
 on:
   pull_request:
     paths:
+      - ".github/workflows/bake-kdf.yml"
       - "bake-kdf/**"
       - "Cargo.*"
   push:
@@ -47,7 +48,6 @@ jobs:
       - uses: dtolnay/rust-toolchain@master
         with:
           toolchain: ${{ matrix.rust }}
-      - run: cargo check --all-features
-      - run: cargo test --no-default-features
-      - run: cargo test
-      - run: cargo test --all-features
+      - uses: RustCrypto/actions/cargo-hack-install@master
+      - run: cargo hack test --feature-powerset
+      - run: cargo test --release --all-features
diff --git a/.github/workflows/concat-kdf.yml b/.github/workflows/concat-kdf.yml
index eb7faf1..38ee2dc 100644
--- a/.github/workflows/concat-kdf.yml
+++ b/.github/workflows/concat-kdf.yml
@@ -3,6 +3,7 @@ name: concat-kdf
 on:
   pull_request:
     paths:
+      - ".github/workflows/concat-kdf.yml"
       - "concat-kdf/**"
       - "Cargo.*"
   push:
@@ -47,7 +48,6 @@ jobs:
       - uses: dtolnay/rust-toolchain@master
         with:
           toolchain: ${{ matrix.rust }}
-      - run: cargo check --all-features
-      - run: cargo test --no-default-features
-      - run: cargo test
-      - run: cargo test --all-features
+      - uses: RustCrypto/actions/cargo-hack-install@master
+      - run: cargo hack test --feature-powerset
+      - run: cargo test --release --all-features
diff --git a/.github/workflows/hkdf.yml b/.github/workflows/hkdf.yml
index 0108975..2e14a61 100644
--- a/.github/workflows/hkdf.yml
+++ b/.github/workflows/hkdf.yml
@@ -3,6 +3,7 @@ name: hkdf
 on:
   pull_request:
     paths:
+      - ".github/workflows/hkdf.yml"
       - "hkdf/**"
       - "Cargo.*"
   push:
@@ -56,7 +57,6 @@ jobs:
       - uses: dtolnay/rust-toolchain@master
         with:
           toolchain: ${{ matrix.rust }}
-      - run: cargo check --all-features
-      - run: cargo test --no-default-features
-      - run: cargo test
-      - run: cargo test --all-features
+      - uses: RustCrypto/actions/cargo-hack-install@master
+      - run: cargo hack test --feature-powerset
+      - run: cargo test --release --all-features
diff --git a/.github/workflows/kbkdf.yml b/.github/workflows/kbkdf.yml
index 8c609f3..093e105 100644
--- a/.github/workflows/kbkdf.yml
+++ b/.github/workflows/kbkdf.yml
@@ -3,6 +3,7 @@ name: kbkdf
 on:
   pull_request:
     paths:
+      - ".github/workflows/kbkdf.yml"
       - "kbkdf/**"
       - "Cargo.*"
   push:
@@ -55,7 +56,6 @@ jobs:
       - uses: dtolnay/rust-toolchain@master
         with:
           toolchain: ${{ matrix.rust }}
-      - run: cargo check --all-features
-      - run: cargo test --no-default-features
-      - run: cargo test
-      - run: cargo test --all-features
+      - uses: RustCrypto/actions/cargo-hack-install@master
+      - run: cargo hack test --feature-powerset
+      - run: cargo test --release --all-features