diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index 82956c0..f831bcd 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -4,10 +4,10 @@ on:
   push:
     branches: [ "main" ]
   pull_request:
-    types: [opened, reopened]
+    types: [opened, reopened, synchronize]
 
 jobs:
-  test:
+  test-16-2:
     runs-on: macos-latest
     steps:
     - name: Set Xcode version 
@@ -16,12 +16,20 @@ jobs:
     - name: Run tests
       run: swift test -v
 
-  test-linux:
-    if: false
-    runs-on: ubuntu-22.04
+  test-26:
+    runs-on: macos-26
+    steps:
+    - name: Set Xcode version 
+      run: sudo xcode-select -s /Applications/Xcode_26.0.app
+    - uses: actions/checkout@v3
+    - name: Run tests
+      run: swift test -v
+
+  test-linux-6-1:
+    runs-on: ubuntu-latest
     steps:
     - uses: actions/checkout@v3
-    - uses: swift-actions/setup-swift@v2
+    - uses: SwiftyLab/setup-swift@latest
       with:
         swift-version: "6.1.0"
     - name: Get swift version
@@ -30,3 +38,17 @@ jobs:
       run: git config --global user.email "test@example.com" && git config --global user.name "Test User"
     - name: Run tests
       run: swift test -v
+
+  test-linux-6-2:
+    runs-on: ubuntu-latest
+    steps:
+    - uses: actions/checkout@v3
+    - uses: SwiftyLab/setup-swift@latest
+      with:
+        swift-version: "6.2.0"
+    - name: Get swift version
+      run: swift --version
+    - name: Prepare Git
+      run: git config --global user.email "test@example.com" && git config --global user.name "Test User"
+    - name: Run tests
+      run: swift test -v
diff --git a/Package.swift b/Package.swift
index 754c662..397262d 100644
--- a/Package.swift
+++ b/Package.swift
@@ -17,11 +17,14 @@ let products: [PackageDescription.Product] = [
     )
 ]
 
+let flags: [PackageDescription.SwiftSetting] = [.enableExperimentalFeature("StrictConcurrency")]
+
 let targets: [PackageDescription.Target] = [
     .executableTarget(
         name: "xcode-selective-test",
         dependencies: ["SelectiveTestingCore",
-                       .product(name: "ArgumentParser", package: "swift-argument-parser")]
+                       .product(name: "ArgumentParser", package: "swift-argument-parser")],
+        swiftSettings: flags
     ),
     .target(name: "SelectiveTestingCore",
             dependencies: ["DependencyCalculator",
@@ -29,25 +32,44 @@ let targets: [PackageDescription.Target] = [
                            "Git",
                            "PathKit",
                            "Yams",
-                           .product(name: "ArgumentParser", package: "swift-argument-parser")]),
+                           .product(name: "ArgumentParser", package: "swift-argument-parser")],
+            swiftSettings: flags
+    ),
     .target(name: "DependencyCalculator",
-            dependencies: ["Workspace", "PathKit", "Git", .product(name: "Logging", package: "swift-log")]),
+            dependencies: ["Workspace", "PathKit", "Git", .product(name: "Logging", package: "swift-log")],
+            swiftSettings: flags
+    ),
     .target(name: "TestConfigurator",
-            dependencies: ["Workspace", "PathKit", .product(name: "Logging", package: "swift-log")]),
+            dependencies: [
+                "Workspace",
+                "PathKit",
+                .product(name: "Logging", package: "swift-log"),
+                .product(name: "ArgumentParser", package: "swift-argument-parser")
+            ],
+            swiftSettings: flags
+    ),
     .target(name: "Workspace",
-            dependencies: ["XcodeProj", .product(name: "Logging", package: "swift-log")]),
+            dependencies: ["XcodeProj", .product(name: "Logging", package: "swift-log")],
+            swiftSettings: flags
+    ),
     .target(name: "Git",
-            dependencies: ["SelectiveTestShell", "PathKit", .product(name: "Logging", package: "swift-log")]),
-    .target(name: "SelectiveTestShell"),
+            dependencies: ["SelectiveTestShell", "PathKit", .product(name: "Logging", package: "swift-log")],
+            swiftSettings: flags
+    ),
+    .target(name: "SelectiveTestShell",
+            swiftSettings: flags
+    ),
     .testTarget(
         name: "SelectiveTestingTests",
         dependencies: ["xcode-selective-test", "PathKit"],
-        resources: [.copy("ExampleProject")]
+        resources: [.copy("ExampleProject")],
+        swiftSettings: flags
     ),
     .testTarget(
         name: "DependencyCalculatorTests",
         dependencies: ["DependencyCalculator", "Workspace", "PathKit", "SelectiveTestingCore"],
-        resources: [.copy("ExamplePackages")]
+        resources: [.copy("ExamplePackages")],
+        swiftSettings: flags
     ),
     .plugin(
         name: "SelectiveTestingPlugin",
@@ -61,7 +83,7 @@ let targets: [PackageDescription.Target] = [
             ]
         ),
         dependencies: ["xcode-selective-test"]
-    ),
+    )
 ]
 
 let package = Package(
diff --git a/Plugins/SelectiveTestingPlugin/SelectiveTestingPlugin.swift b/Plugins/SelectiveTestingPlugin/SelectiveTestingPlugin.swift
index 7f0dc29..2a73c2d 100644
--- a/Plugins/SelectiveTestingPlugin/SelectiveTestingPlugin.swift
+++ b/Plugins/SelectiveTestingPlugin/SelectiveTestingPlugin.swift
@@ -48,19 +48,23 @@ struct SelectiveTestingPlugin: CommandPlugin {
             }
             
             if !toolArguments.contains(where: { $0 == "--test-plan" }) {
-                let testPlans = context.xcodeProject.filePaths.filter {
-                    $0.extension == "xctestplan"
+                let allFiles = context.xcodeProject.targets.reduce([]) { partialResult, target in
+                    partialResult + target.inputFiles
+                }
+                
+                let testPlans = allFiles.filter {
+                    $0.url.pathExtension == "xctestplan"
                 }
 
                 if !testPlans.isEmpty {
                     if testPlans.count == 1 {
-                        print("Using \(testPlans[0].string) test plan")
+                        print("Using \(testPlans[0].url.path()) test plan")
                     } else {
                         print("Using \(testPlans.count) test plans")
                     }
 
                     for testPlan in testPlans {
-                        toolArguments.append(contentsOf: ["--test-plan", testPlan.string])
+                        toolArguments.append(contentsOf: ["--test-plan", testPlan.url.path()])
                     }
                 }
             }
diff --git a/Sources/Workspace/Target.swift b/Sources/Workspace/Target.swift
index 0c59a4f..e3cca85 100644
--- a/Sources/Workspace/Target.swift
+++ b/Sources/Workspace/Target.swift
@@ -3,7 +3,7 @@
 //
 
 import Foundation
-import PathKit
+@preconcurrency import PathKit
 import XcodeProj
 
 extension PBXNativeTarget {
@@ -17,8 +17,8 @@ extension PBXNativeTarget {
     }
 }
 
-public struct TargetIdentity: Hashable {
-    public enum TargetType {
+public struct TargetIdentity: Hashable, Sendable {
+    public enum TargetType: Sendable {
         case project
         case package
     }