diff --git a/Sources/XcodeProj/Objects/Project/PBXObjects.swift b/Sources/XcodeProj/Objects/Project/PBXObjects.swift
index 70083a779..67388444b 100644
--- a/Sources/XcodeProj/Objects/Project/PBXObjects.swift
+++ b/Sources/XcodeProj/Objects/Project/PBXObjects.swift
@@ -298,6 +298,8 @@ class PBXObjects: Equatable {
             return _buildRules.remove(at: index).value
         } else if let index = remoteSwiftPackageReferences.index(forKey: reference) {
             return _remoteSwiftPackageReferences.remove(at: index).value
+        } else if let index = localSwiftPackageReferences.index(forKey: reference) {
+            return _localSwiftPackageReferences.remove(at: index).value
         } else if let index = swiftPackageProductDependencies.index(forKey: reference) {
             return _swiftPackageProductDependencies.remove(at: index).value
         } else if let index = fileSystemSynchronizedRootGroups.index(forKey: reference) {
diff --git a/Tests/XcodeProjTests/Objects/SwiftPackage/XCLocalSwiftPackageReferenceTests.swift b/Tests/XcodeProjTests/Objects/SwiftPackage/XCLocalSwiftPackageReferenceTests.swift
index 17d28f42e..1ad9d94f4 100644
--- a/Tests/XcodeProjTests/Objects/SwiftPackage/XCLocalSwiftPackageReferenceTests.swift
+++ b/Tests/XcodeProjTests/Objects/SwiftPackage/XCLocalSwiftPackageReferenceTests.swift
@@ -51,4 +51,74 @@ final class XCLocalSwiftPackageReferenceTests: XCTestCase {
         // Then
         XCTAssertEqual(subject.name, "tuist/xcodeproj")
     }
+
+    // MARK: - Add/Delete Tests
+
+    func test_add_addsObjectToPBXProj() {
+        // Given
+        let proj = PBXProj.fixture(rootObject: nil, objects: [])
+        let localPackage = XCLocalSwiftPackageReference(relativePath: "../MyPackage")
+
+        // When
+        proj.add(object: localPackage)
+
+        // Then
+        XCTAssertEqual(proj.objects.localSwiftPackageReferences.count, 1)
+        XCTAssertEqual(proj.objects.localSwiftPackageReferences.values.first?.relativePath, "../MyPackage")
+    }
+
+    func test_delete_removesObjectFromPBXProj() {
+        // Given
+        let proj = PBXProj.fixture(rootObject: nil, objects: [])
+        let localPackage = XCLocalSwiftPackageReference(relativePath: "../MyPackage")
+        proj.add(object: localPackage)
+
+        // Verify it was added
+        XCTAssertEqual(proj.objects.localSwiftPackageReferences.count, 1)
+
+        // When
+        proj.delete(object: localPackage)
+
+        // Then
+        XCTAssertEqual(proj.objects.localSwiftPackageReferences.count, 0)
+    }
+
+    func test_delete_removesCorrectObject_whenMultipleExist() {
+        // Given
+        let proj = PBXProj.fixture(rootObject: nil, objects: [])
+        let localPackage1 = XCLocalSwiftPackageReference(relativePath: "../Package1")
+        let localPackage2 = XCLocalSwiftPackageReference(relativePath: "../Package2")
+        let localPackage3 = XCLocalSwiftPackageReference(relativePath: "../Package3")
+        proj.add(object: localPackage1)
+        proj.add(object: localPackage2)
+        proj.add(object: localPackage3)
+
+        // Verify all were added
+        XCTAssertEqual(proj.objects.localSwiftPackageReferences.count, 3)
+
+        // When - delete the middle one
+        proj.delete(object: localPackage2)
+
+        // Then
+        XCTAssertEqual(proj.objects.localSwiftPackageReferences.count, 2)
+        let remainingPaths = proj.objects.localSwiftPackageReferences.values.map(\.relativePath)
+        XCTAssertTrue(remainingPaths.contains("../Package1"))
+        XCTAssertTrue(remainingPaths.contains("../Package3"))
+        XCTAssertFalse(remainingPaths.contains("../Package2"))
+    }
+
+    func test_delete_doesNothing_whenObjectNotInProj() {
+        // Given
+        let proj = PBXProj.fixture(rootObject: nil, objects: [])
+        let addedPackage = XCLocalSwiftPackageReference(relativePath: "../AddedPackage")
+        let notAddedPackage = XCLocalSwiftPackageReference(relativePath: "../NotAddedPackage")
+        proj.add(object: addedPackage)
+
+        // When - try to delete an object that was never added
+        proj.delete(object: notAddedPackage)
+
+        // Then - the added package should still be there
+        XCTAssertEqual(proj.objects.localSwiftPackageReferences.count, 1)
+        XCTAssertEqual(proj.objects.localSwiftPackageReferences.values.first?.relativePath, "../AddedPackage")
+    }
 }