diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index e1faae5..5bbb382 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -34,6 +34,9 @@ jobs:
       - uses: actions/checkout@v3
         name: Checkout
 
+      - name: Install Protoc
+        uses: arduino/setup-protoc@v3
+
       # Always install nightly toolchain for `Rustfmt`.
       - name: Install toolchain ${{ matrix.rust }}
         run: |