diff --git a/.github/workflows/scheduled.yml b/.github/workflows/scheduled.yml
index 02aa275..718a192 100644
--- a/.github/workflows/scheduled.yml
+++ b/.github/workflows/scheduled.yml
@@ -24,6 +24,10 @@ jobs:
           submodules: true
       - name: Install nightly
         uses: dtolnay/rust-toolchain@nightly
+      # Some crates require the protoc compiler to be available at compile time.
+      # Maybe this should be installed by default on all runners.
+      - name: Install Protoc
+        uses: arduino/setup-protoc@v3
       - name: cargo generate-lockfile
         if: hashFiles('Cargo.lock') == ''
         run: cargo generate-lockfile