diff --git a/.github/workflows/ci.yaml b/.github/workflows/ci.yaml
index 00d86802..3a6991ec 100644
--- a/.github/workflows/ci.yaml
+++ b/.github/workflows/ci.yaml
@@ -65,10 +65,13 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        os:
-          - "macos-latest"
-          - "ubuntu-latest"
+        - os: "macos-latest"
+          flaky: false
+        - os: "ubuntu-latest"
+          flaky: true
     runs-on: ${{ matrix.os }}
+    # The ubuntu runner has inexplicably started refusing to run on CI...
+    continue-on-error: ${{ matrix.flaky }}
     steps:
       - uses: actions/checkout@v4
       - uses: haskell-actions/setup@v2