diff --git a/.github/workflows/tests.yml b/.github/workflows/tests.yml
index efc2aa5d..0c52db8c 100644
--- a/.github/workflows/tests.yml
+++ b/.github/workflows/tests.yml
@@ -15,9 +15,8 @@ jobs:
         os: [ubuntu-latest, macos-latest, windows-latest]
         php: ['8.1', '8.2']
         dependency-version: [prefer-lowest, prefer-stable]
-        parallel: ['', '--parallel']
 
-    name: PHP ${{ matrix.php }} - ${{ matrix.os }} - ${{ matrix.dependency-version }} - ${{ matrix.parallel }}
+    name: PHP ${{ matrix.php }} - ${{ matrix.os }} - ${{ matrix.dependency-version }}
 
     steps:
     - name: Checkout
@@ -41,9 +40,8 @@ jobs:
     - name: Unit Tests
       run: composer test:unit
 
-    - name: Unit Tests
+    - name: Unit Tests in Parallel
       run: test:parallel
-      if: ${{ false }}  # Parallel's not yet supported.
 
     - name: Integration Tests
       run: composer test:integration
diff --git a/composer.json b/composer.json
index 63d90f5a..7c2c1618 100644
--- a/composer.json
+++ b/composer.json
@@ -71,7 +71,7 @@
         "test:types": "phpstan analyse --ansi --memory-limit=-1 --debug",
         "test:unit": "php bin/pest --colors=always --exclude-group=integration --compact",
         "test:inline": "php bin/pest --colors=always --configuration=phpunit.inline.xml",
-        "test:parallel": "exit 1",
+        "test:parallel": "php bin/pest --colors=always --exclude-group=integration --parallel",
         "test:integration": "php bin/pest --colors=always --group=integration -v",
         "update:snapshots": "REBUILD_SNAPSHOTS=true php bin/pest --colors=always",
         "test": [