diff --git a/.gitignore b/.gitignore
index 4178c3e..140bca5 100644
--- a/.gitignore
+++ b/.gitignore
@@ -13,6 +13,8 @@
 Packages/
 .build/
 *.resolved
+.swiftpm/configuration/registries.json
+.swiftpm/xcode/package.xcworkspace/contents.xcworkspacedata
 
 # Bazel
 
diff --git a/Tests/PromisesTests/Promise+ThenTests.swift b/Tests/PromisesTests/Promise+ThenTests.swift
index 35eabde..65fcdb9 100644
--- a/Tests/PromisesTests/Promise+ThenTests.swift
+++ b/Tests/PromisesTests/Promise+ThenTests.swift
@@ -59,20 +59,20 @@ class PromiseThenTests: XCTestCase {
     XCTAssertNil(postFinalPromise.error)
   }
 
-  func testPromiseWhenNilBridgesToNSNullInThenChain() {
+  func testPromiseWhenNilBridgesToNilInThenChain() {
     // Act.
     let promise = Promise<Any?> { fulfill, _ in
       fulfill(nil)
     }.catch { _ in
       XCTFail()
     }.then { value in
-      XCTAssert(value is NSNull)
+      XCTAssertNil(value)
     }
 
     // Assert.
     XCTAssert(waitForPromises(timeout: 10))
     XCTAssertTrue(promise.isFulfilled)
-    XCTAssert(promise.value is NSNull)
+    XCTAssertNil(promise.value)
     XCTAssertNil(promise.error)
   }