diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 98f85ba51..1921a4576 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -25,19 +25,19 @@ jobs:
           override: true
 
       - name: Cache cargo registry
-        uses: actions/cache@v1
+        uses: actions/cache@v2.1.6
         with:
           path: ~/.cargo/registry
           key: ${{ runner.os }}-v1-cargo-registry-${{ hashFiles('**/Cargo.lock') }}
 
       - name: Cache cargo index
-        uses: actions/cache@v1
+        uses: actions/cache@v2.1.6
         with:
           path: ~/.cargo/git
           key: ${{ runner.os }}-v1-cargo-index-${{ hashFiles('**/Cargo.lock') }}
 
       - name: Cache cargo target dir
-        uses: actions/cache@v1
+        uses: actions/cache@v2.1.6
         with:
           path: target
           key: ${{ runner.os }}-v1-cargo-build-target-${{ hashFiles('**/Cargo.lock') }}
@@ -64,19 +64,19 @@ jobs:
           override: true
 
       - name: Cache cargo registry
-        uses: actions/cache@v1
+        uses: actions/cache@v2.1.6
         with:
           path: ~/.cargo/registry
           key: ${{ runner.os }}-v1-cargo-registry-${{ hashFiles('**/Cargo.lock') }}
 
       - name: Cache cargo index
-        uses: actions/cache@v1
+        uses: actions/cache@v2.1.6
         with:
           path: ~/.cargo/git
           key: ${{ runner.os }}-v1-cargo-index-${{ hashFiles('**/Cargo.lock') }}
 
       - name: Cache cargo target dir
-        uses: actions/cache@v1
+        uses: actions/cache@v2.1.6
         with:
           path: target
           key: ${{ runner.os }}-v1-cargo-build-target-${{ hashFiles('**/Cargo.lock') }}
@@ -104,19 +104,19 @@ jobs:
           components: rustfmt, clippy
 
       - name: Cache cargo registry
-        uses: actions/cache@v1
+        uses: actions/cache@v2.1.6
         with:
           path: ~/.cargo/registry
           key: ${{ runner.os }}-v1-cargo-registry-${{ hashFiles('**/Cargo.lock') }}
 
       - name: Cache cargo index
-        uses: actions/cache@v1
+        uses: actions/cache@v2.1.6
         with:
           path: ~/.cargo/git
           key: ${{ runner.os }}-v1-cargo-index-${{ hashFiles('**/Cargo.lock') }}
 
       - name: Cache cargo target dir
-        uses: actions/cache@v1
+        uses: actions/cache@v2.1.6
         with:
           path: target
           key: ${{ runner.os }}-v1-cargo-build-target-${{ hashFiles('**/Cargo.lock') }}