diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 2f8a002..5328b71 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -20,7 +20,9 @@ jobs:
       - uses: actions/checkout@11d5960a326750d5838078e36cf38b85af677262 # v4.4.0
       - uses: actions/setup-go@40f1582b2485089dde7abd97c1529aa768e1baff # v5.6.0
         with:
-          go-version: stable
+          # ponytail: staticcheck 2026.2.1 cannot read go1.27.2 export data;
+          # back to stable once a staticcheck release supports it.
+          go-version: 1.27.1
           cache: false
       - name: gofmt
         run: |