diff --git a/.github/workflows/check-kokoro-model.yml b/.github/workflows/check-kokoro-model.yml
index dfbcbf2..c8fd743 100644
--- a/.github/workflows/check-kokoro-model.yml
+++ b/.github/workflows/check-kokoro-model.yml
@@ -46,17 +46,33 @@ jobs:
         env:
           GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
         run: |
-          # Filter to model-files-v* tags so the kokoro_onnx Python package
-          # releases (which use plain v* tags) don't confuse us.
-          tag=$(gh api repos/thewh1teagle/kokoro-onnx/releases \
-            --jq '[.[] | select(.tag_name | startswith("model-files-v"))][0].tag_name')
+          # Two filters here, both essential:
+          #
+          # 1. tag_name starts with `model-files-v` — kokoro-onnx also
+          #    publishes plain `v*` tags for the Python package; we don't
+          #    care about those.
+          #
+          # 2. release contains BOTH `kokoro-vX.Y.onnx` AND `voices-vX.Y.bin`
+          #    assets (no variant suffix). This skips Mandarin-only sibling
+          #    releases like `model-files-v1.1` whose assets are
+          #    `kokoro-v1.1-zh.onnx` / `voices-v1.1-zh.bin` — a tag-only
+          #    check would treat that as a successor and prompt a broken
+          #    URL bump.
+          tag=$(gh api repos/thewh1teagle/kokoro-onnx/releases --jq '
+            [
+              .[]
+              | select(.tag_name | startswith("model-files-v"))
+              | select([.assets[] | .name | test("^kokoro-v[0-9.]+\\.onnx$")] | any)
+              | select([.assets[] | .name | test("^voices-v[0-9.]+\\.bin$")] | any)
+            ][0].tag_name
+          ')
           if [ -z "$tag" ] || [ "$tag" = "null" ]; then
-            echo "::warning::could not resolve latest upstream model-files-v* tag; skipping"
+            echo "::warning::could not resolve latest upstream model-files-v* tag with general (non-variant) assets; skipping"
             echo "tag=" >> "$GITHUB_OUTPUT"
             exit 0
           fi
           echo "tag=$tag" >> "$GITHUB_OUTPUT"
-          echo "latest upstream tag: $tag"
+          echo "latest upstream tag (with general assets): $tag"
 
       - name: ensure model-upgrade label exists
         if: steps.latest.outputs.tag != '' && steps.latest.outputs.tag != steps.pinned.outputs.tag