diff --git a/.github/actions/cross-tests/action.yml b/.github/actions/cross-tests/action.yml
index 58ca263..60de127 100644
--- a/.github/actions/cross-tests/action.yml
+++ b/.github/actions/cross-tests/action.yml
@@ -14,6 +14,7 @@ runs:
   using: "composite"
   steps:
       - uses: actions/checkout@v2
+      - uses: RustCrypto/actions/cargo-cache@master
       - uses: actions-rs/toolchain@v1
         with:
           profile: minimal
diff --git a/.github/workflows/keccak.yml b/.github/workflows/keccak.yml
index dcad98a..1956f6e 100644
--- a/.github/workflows/keccak.yml
+++ b/.github/workflows/keccak.yml
@@ -36,6 +36,7 @@ jobs:
           - wasm32-unknown-unknown
     steps:
       - uses: actions/checkout@v2
+      - uses: RustCrypto/actions/cargo-cache@master
       - uses: actions-rs/toolchain@v1
         with:
           profile: minimal
@@ -59,6 +60,7 @@ jobs:
           - stable
     steps:
       - uses: actions/checkout@v2
+      - uses: RustCrypto/actions/cargo-cache@master
       - uses: actions-rs/toolchain@v1
         with:
           profile: minimal
diff --git a/.github/workflows/security-audit.yml b/.github/workflows/security-audit.yml
index 0d82d54..4af99ee 100644
--- a/.github/workflows/security-audit.yml
+++ b/.github/workflows/security-audit.yml
@@ -13,7 +13,8 @@ jobs:
     name: Security Audit
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v1
+      - uses: actions/checkout@v2
+      - uses: RustCrypto/actions/cargo-cache@master
       - name: Cache cargo bin
         uses: actions/cache@v1
         with:
diff --git a/.github/workflows/workspace.yml b/.github/workflows/workspace.yml
index ff7810a..7a93205 100644
--- a/.github/workflows/workspace.yml
+++ b/.github/workflows/workspace.yml
@@ -13,7 +13,8 @@ jobs:
   clippy:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v1
+      - uses: actions/checkout@v2
+      - uses: RustCrypto/actions/cargo-cache@master
       - uses: actions-rs/toolchain@v1
         with:
           toolchain: stable
@@ -26,7 +27,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout sources
-        uses: actions/checkout@v1
+        uses: actions/checkout@v2
 
       - name: Install stable toolchain
         uses: actions-rs/toolchain@v1