diff --git a/.github/workflows/checks.yml b/.github/workflows/checks.yml
index 3c96dafb7..bad2acdce 100644
--- a/.github/workflows/checks.yml
+++ b/.github/workflows/checks.yml
@@ -16,13 +16,13 @@ jobs:
       - uses: actions/checkout@v1
 
       - name: Cache cargo registry
-        uses: actions/cache@v1
+        uses: actions/cache@v2
         with:
           path: ~/.cargo/registry
           key: ${{ runner.os }}-cargo-registry-${{ hashFiles('**/Cargo.lock') }}
 
       - name: Cache cargo build
-        uses: actions/cache@v1
+        uses: actions/cache@v2
         with:
           path: target
           key: ${{ runner.os }}-cargo-build-target-${{ hashFiles('**/Cargo.lock') }}
@@ -60,13 +60,13 @@ jobs:
           mdbook-version: '0.4.10'
 
       - name: Cache cargo registry
-        uses: actions/cache@v1
+        uses: actions/cache@v2
         with:
           path: ~/.cargo/registry
           key: ${{ runner.os }}-cargo-registry-${{ hashFiles('**/Cargo.lock') }}
 
       - name: Cache cargo build
-        uses: actions/cache@v1
+        uses: actions/cache@v2
         with:
           path: target
           key: ${{ runner.os }}-cargo-build-target-${{ hashFiles('**/Cargo.lock') }}
diff --git a/.github/workflows/publish-docs.yml b/.github/workflows/publish-docs.yml
index 8bb43f89c..83dceb76c 100644
--- a/.github/workflows/publish-docs.yml
+++ b/.github/workflows/publish-docs.yml
@@ -19,13 +19,13 @@ jobs:
           mdbook-version: '0.4.10'
 
       - name: Cache cargo registry
-        uses: actions/cache@v1
+        uses: actions/cache@v2
         with:
           path: ~/.cargo/registry
           key: ${{ runner.os }}-cargo-registry-${{ hashFiles('**/Cargo.lock') }}
 
       - name: Cache cargo build
-        uses: actions/cache@v1
+        uses: actions/cache@v2
         with:
           path: target
           key: ${{ runner.os }}-cargo-build-target-${{ hashFiles('**/Cargo.lock') }}
diff --git a/.github/workflows/tests.yml b/.github/workflows/tests.yml
index 78a0e183e..05ccd9ad3 100644
--- a/.github/workflows/tests.yml
+++ b/.github/workflows/tests.yml
@@ -27,13 +27,13 @@ jobs:
       - uses: actions/checkout@v1
 
       - name: Cache cargo registry
-        uses: actions/cache@v1
+        uses: actions/cache@v2
         with:
           path: ~/.cargo/registry
           key: ${{ runner.os }}-${{ matrix.rust }}-cargo-registry-${{ hashFiles('**/Cargo.lock') }}
 
       - name: Cache cargo build
-        uses: actions/cache@v1
+        uses: actions/cache@v2
         with:
           path: target
           key: ${{ runner.os }}-${{ matrix.rust }}-cargo-build-target-${{ hashFiles('**/Cargo.lock') }}