diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 21a64810e7..4b418afa12 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -62,7 +62,8 @@ jobs:
     name: Run checks and tests
     # We run only one of the matrix options on the toffee `hetzner-1` self-hosted GitHub runner.
     # Only in this configuration we enable tests with the code coverage data gathering.
-    runs-on: [hetzner-proof-systems-runners-group-1]
+    # runs-on: [hetzner-proof-systems-runners-group-1]
+    runs-on: ${{ matrix.rust_toolchain_version == '1.74' && 'hetzner-1' || 'ubuntu-latest' }}
     env:
       RUST_TOOLCHAIN_COVERAGE_VERSION: "1.74"
     strategy: