diff --git a/.github/workflows/macos-10.15.yml b/.github/workflows/macos-14.yml
similarity index 84%
rename from .github/workflows/macos-10.15.yml
rename to .github/workflows/macos-14.yml
index 9297bc4..5602b3e 100644
--- a/.github/workflows/macos-10.15.yml
+++ b/.github/workflows/macos-14.yml
@@ -1,4 +1,4 @@
-name: macOS 10.15
+name: macOS 14
 
 on:
   push:
@@ -10,10 +10,10 @@ on:
 
 jobs:
   test:
-    runs-on: macos-10.15
+    runs-on: macos-14
 
     steps:
-    - uses: actions/checkout@v2
+    - uses: actions/checkout@v4
     - name: Lint
       run: |
         swiftlint --strict
diff --git a/.github/workflows/macos-11.yml b/.github/workflows/macos-15.yml
similarity index 68%
rename from .github/workflows/macos-11.yml
rename to .github/workflows/macos-15.yml
index e29fc66..b814c45 100644
--- a/.github/workflows/macos-11.yml
+++ b/.github/workflows/macos-15.yml
@@ -1,4 +1,4 @@
-name: macOS 11
+name: macOS 15
 
 on:
   push:
@@ -10,14 +10,10 @@ on:
 
 jobs:
   test:
-    runs-on: macos-11
+    runs-on: macos-15
 
     steps:
-    - uses: actions/checkout@v2
-    - name: Setup Xcode version
-      uses: maxim-lobanov/setup-xcode@v1.4.0
-      with:
-        xcode-version: 13.1
+    - uses: actions/checkout@v4
     - name: Lint
       run: |
         swiftlint --strict
diff --git a/Package.swift b/Package.swift
index 9c456de..fb466b5 100644
--- a/Package.swift
+++ b/Package.swift
@@ -1,4 +1,4 @@
-// swift-tools-version:5.1
+// swift-tools-version:5.5
 
 import PackageDescription
 
diff --git a/Package@swift-5.5.swift b/Package@swift-5.5.swift
deleted file mode 100644
index 24cfcb2..0000000
--- a/Package@swift-5.5.swift
+++ /dev/null
@@ -1,33 +0,0 @@
-// swift-tools-version:5.5
-// This manifest is needed to properly generate DocC documentation.
-
-import PackageDescription
-
-let package = Package(
-    name: "FTAPIKit",
-    platforms: [
-        .iOS(.v14),
-        .macOS(.v11),
-        .tvOS(.v14),
-        .watchOS(.v7)
-    ],
-    products: [
-        .library(
-            name: "FTAPIKit",
-            targets: ["FTAPIKit"])
-    ],
-    dependencies: [
-        .package(url: "https://github.com/futuredapp/FTNetworkTracer", from: "0.2.0")
-    ],
-    targets: [
-        .target(
-            name: "FTAPIKit",
-            dependencies: [
-                .product(name: "FTNetworkTracer", package: "FTNetworkTracer")
-            ]
-        ),
-        .testTarget(
-            name: "FTAPIKitTests",
-            dependencies: ["FTAPIKit"])
-    ]
-)