diff --git a/.github/workflows/check-dependencies.yaml b/.github/workflows/check-dependencies.yaml
index 704e5a8..19dfac9 100644
--- a/.github/workflows/check-dependencies.yaml
+++ b/.github/workflows/check-dependencies.yaml
@@ -39,7 +39,7 @@ jobs:
       - name: Find Outdated Packages
         run: dart pub outdated --json > outdated.json
       - name: Upload Output of `dart pub outdated`
-        uses: actions/upload-artifact@v3
+        uses: actions/upload-artifact@v4
         with:
           name: outdated
           path: outdated.json
diff --git a/.github/workflows/main.yaml b/.github/workflows/main.yaml
index feda362..5964e76 100644
--- a/.github/workflows/main.yaml
+++ b/.github/workflows/main.yaml
@@ -91,7 +91,7 @@ jobs:
         env:
           dart_version: ${{ matrix.dart-version }}
       - name: Upload Test Coverage
-        uses: actions/upload-artifact@v3
+        uses: actions/upload-artifact@v4
         with:
           name: coverage
           path: coverage/
@@ -125,7 +125,7 @@ jobs:
         env:
           node_version: ${{ matrix.node-version }}
       - name: Upload Test Coverage
-        uses: actions/upload-artifact@v3
+        uses: actions/upload-artifact@v4
         with:
           name: coverage
           path: coverage/
@@ -148,7 +148,7 @@ jobs:
           --platform chrome
           --coverage=./coverage/chrome"
       - name: Upload Test Coverage
-        uses: actions/upload-artifact@v3
+        uses: actions/upload-artifact@v4
         with:
           name: coverage
           path: coverage/
@@ -208,7 +208,7 @@ jobs:
       - name: Build Documentation
         run: dart doc
       - name: Upload Documentation
-        uses: actions/upload-artifact@v3
+        uses: actions/upload-artifact@v4
         with:
           name: api-documentation
           path: doc/api
@@ -232,7 +232,7 @@ jobs:
           dart compile exe -o build/bin/decoder bin/decoder.dart
           dart compile exe -o build/bin/encoder bin/encoder.dart
       - name: Upload Decoder Executable
-        uses: actions/upload-artifact@v3
+        uses: actions/upload-artifact@v4
         with:
           name: toml-test
           path: |