diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 6f4c54a5ce..32bece8899 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -79,7 +79,7 @@ jobs:
     with:
       go-version: ${{ matrix.go-version }}
       fail-fast: false
-      platforms: 'ubuntu-latest'
+      platforms: '["ubuntu-latest"]'
       project-directory: "."
       rootless-docker: false
       ryuk-disabled: true
@@ -100,7 +100,7 @@ jobs:
     with:
       go-version: ${{ matrix.go-version }}
       fail-fast: false
-      platforms: 'ubuntu-latest'
+      platforms: '["ubuntu-latest"]'
       project-directory: "."
       rootless-docker: true
       ryuk-disabled: false