diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index ea52887..6c2f025 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -8,7 +8,7 @@ jobs:
     runs-on: ubuntu-18.04
     strategy:
       matrix:
-        swift: ['5.1', '5.2', '5.3']
+        swift: ['5.1.5', '5.2.5', '5.3.3', '5.4.2']
     steps:
       - uses: actions/checkout@v2
       - name: Setup Swift ${{ matrix.swift }}