diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index 2f1987f..0490e86 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -4,10 +4,10 @@ on:
   - pull_request
 jobs:
   test:
-    runs-on: macos-12
+    runs-on: macos-13
     steps:
       - uses: actions/checkout@v3
-      - run: sudo xcode-select -switch /Applications/Xcode_14.1.app
+      - run: sudo xcode-select -switch /Applications/Xcode_14.3.app
       - run: swift test
   lint:
     runs-on: ubuntu-latest
diff --git a/Package.swift b/Package.swift
index 758fa4d..110a764 100644
--- a/Package.swift
+++ b/Package.swift
@@ -1,4 +1,4 @@
-// swift-tools-version:5.7
+// swift-tools-version:5.8
 import PackageDescription
 
 let package = Package(