diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
index cf6d20e417c1..f26fe4ab45ff 100644
--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@@ -30,6 +30,9 @@ jobs:
           mkdir -p forest-${{ github.ref_name }}
           cp -v target/release/forest target/release/forest-cli target/release/forest-tool forest-${{ github.ref_name }}
           cp -rv CHANGELOG.md LICENSE-APACHE LICENSE-MIT README.md documentation forest-${{ github.ref_name }}
+          # If `sha256sum` is not defined, then we're likely running MacOS. Use an alias.
+          # An alternative is to install `coreutils`.
+          type sha256sum >/dev/null 2>&1 || alias sha256sum='shasum -a 256'
           sha256sum forest-${{ github.ref_name }}/forest > forest-${{ github.ref_name }}/forest.sha256
           sha256sum forest-${{ github.ref_name }}/forest-cli > forest-${{ github.ref_name }}/forest-cli.sha256
           sha256sum forest-${{ github.ref_name }}/forest-tool > forest-${{ github.ref_name }}/forest-tool.sha256