diff --git a/.github/workflows/pull-request.yml b/.github/workflows/pull-request.yml
index 7cd8a62..9cc6bc9 100644
--- a/.github/workflows/pull-request.yml
+++ b/.github/workflows/pull-request.yml
@@ -14,6 +14,9 @@ jobs:
 
     steps:
     - uses: actions/checkout@v3
+    - uses: swift-actions/setup-swift@65540b95f51493d65f5e59e97dcef9629ddf11bf
+      with:
+        swift-version: "5.8"
     - name: Build
       run: swift build -v
     - name: Run unit tests
diff --git a/.swift-version b/.swift-version
index 9ad974f..3659ea2 100644
--- a/.swift-version
+++ b/.swift-version
@@ -1 +1 @@
-5.5
+5.8