diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 0ba55fa..5c65806 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -7,7 +7,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@85e6279cec87321a52edac9c87bce653a07cf6c2
-      - uses: dart-lang/setup-dart@c8d9f105c780f626b21f6929fec7e8162014f5ad
+      - uses: dart-lang/setup-dart@fe21d53e1e27c70b5c8e8273d4bcc0d23c071577
         with:
           sdk: dev
       - name: Install dependencies
@@ -25,7 +25,7 @@ jobs:
         sdk: [ stable, beta, dev ]
     steps:
       - uses: actions/checkout@85e6279cec87321a52edac9c87bce653a07cf6c2
-      - uses: dart-lang/setup-dart@c8d9f105c780f626b21f6929fec7e8162014f5ad
+      - uses: dart-lang/setup-dart@fe21d53e1e27c70b5c8e8273d4bcc0d23c071577
         with:
           sdk: ${{ matrix.sdk }}
       - name: Install dependencies
diff --git a/lib/src/iterable.dart b/lib/src/iterable.dart
index a4723f7..15e59f6 100644
--- a/lib/src/iterable.dart
+++ b/lib/src/iterable.dart
@@ -104,7 +104,7 @@ extension CollectionExtensions<T> on Iterable<T?>? {
   /// print(destination); // prints: [1, 3]
   /// ```
   C filterNotNullTo<C extends List<T>>(C destination) {
-    if (this.isNullOrEmpty) return destination;
+    if (isNullOrEmpty) return destination;
     for (final element in this!) {
       if (element != null) {
         destination.add(element);