diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index ab8a7cf52b4..158d0b25eaf 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -21,16 +21,16 @@ jobs:
           toolchain: stable
           override: true
       - name: cargo fetch
-        uses: actions-rs/cargo@v1
+        uses: actions-rs/cargo@v1.0.3
         with:
           command: fetch
       - name: Run tests
-        uses: actions-rs/cargo@v1
+        uses: actions-rs/cargo@v1.0.3
         with:
           command: test
           args: --verbose --all
       - name: Build
-        uses: actions-rs/cargo@v1
+        uses: actions-rs/cargo@v1.0.3
         with:
           command: build
           args: --verbose --release
@@ -61,7 +61,7 @@ jobs:
           toolchain: stable
           override: true
       - run: rustup component add rustfmt
-      - uses: actions-rs/cargo@v1
+      - uses: actions-rs/cargo@v1.0.3
         with:
           command: fmt
           args: --all -- --check