diff --git a/.github/workflows/tests.yml b/.github/workflows/tests.yml
index 36e0e5d..50b0bc5 100644
--- a/.github/workflows/tests.yml
+++ b/.github/workflows/tests.yml
@@ -13,12 +13,12 @@ jobs:
       matrix:
         swift-image:
           - name: swift:5.10-noble
-            failure-exit-code: 99
+            failure-exit: false
           - name: swift:6.0-noble
-            failure-exit-code: 99
+            failure-exit: false
           - name: swiftlang/swift:nightly-main-jammy
             # https://github.com/swiftlang/swift/issues/77242
-            failure-exit-code: 0
+            failure-exit: true
         config:
           - mode: "debug"
             build_args: ""
@@ -60,7 +60,7 @@ jobs:
 
       - name: Run tests
         run:
-          swift test --parallel -c ${{ matrix.config.mode }} ${{ matrix.config.test_args }} || exit ${{ matrix.swift-image.failure-exit-code }}
+          swift test --parallel -c ${{ matrix.config.mode }} ${{ matrix.config.test_args }} || ${{ matrix.swift-image.failure-exit }}
 
       - name: Submit code coverage
         if: matrix.config.with_codecov