diff --git a/Sources/TuistKit/ProjectEditor/ProjectEditorMapper.swift b/Sources/TuistKit/ProjectEditor/ProjectEditorMapper.swift
index 691619cfa6a..800f223205a 100644
--- a/Sources/TuistKit/ProjectEditor/ProjectEditorMapper.swift
+++ b/Sources/TuistKit/ProjectEditor/ProjectEditorMapper.swift
@@ -251,7 +251,9 @@ final class ProjectEditorMapper: ProjectEditorMapping {
             var packagesSettings = targetBaseSettings(
                 projectFrameworkPath: projectDescriptionPath,
                 pluginHelperLibraryPaths: pluginProjectDescriptionHelpersModule.map(\.path),
-                swiftVersion: swiftVersion
+                // We have no use of strict concurrency in the Packages targets, so we're opting into the Swift 5 language mode.
+                // Otherwise, `PackageDescription` must be imported with the `@preconcurrency` modifier
+                swiftVersion: Version(5, 0, 0).description
             )
             packagesSettings.merge(
                 [
diff --git a/Tests/TuistKitTests/ProjectEditor/ProjectEditorMapperTests.swift b/Tests/TuistKitTests/ProjectEditor/ProjectEditorMapperTests.swift
index e53255fab6e..db87a90d613 100644
--- a/Tests/TuistKitTests/ProjectEditor/ProjectEditorMapperTests.swift
+++ b/Tests/TuistKitTests/ProjectEditor/ProjectEditorMapperTests.swift
@@ -220,6 +220,7 @@ final class ProjectEditorMapperTests: TuistUnitTestCase {
                     "SWIFT_INCLUDE_PATHS": .array([
                         "/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/lib/swift/pm/ManifestAPI",
                     ]),
+                    "SWIFT_VERSION": "5.0.0",
                 ],
                 uniquingKeysWith: {
                     switch ($0, $1) {
diff --git a/fixtures/app_with_spm_dependencies/Tuist/Package.swift b/fixtures/app_with_spm_dependencies/Tuist/Package.swift
index 480fcdcd912..e8a2d080067 100644
--- a/fixtures/app_with_spm_dependencies/Tuist/Package.swift
+++ b/fixtures/app_with_spm_dependencies/Tuist/Package.swift
@@ -1,5 +1,5 @@
 // swift-tools-version: 6.0
-@preconcurrency import PackageDescription
+import PackageDescription
 
 #if TUIST
     import ProjectDescription