diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index e0dfde3..9d78278 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -49,7 +49,7 @@ jobs:
       - name: Setup Go
         uses: actions/setup-go@v5
         with:
-          go-version: '1.16' # oldest supported
+          go-version: '1.25' # oldest supported
       - name: Check tidied
         run: |
           go mod download