diff --git a/tests/Functional/AuditingTest.php b/tests/Functional/AuditingTest.php
index c73898e1..d75f7ba8 100644
--- a/tests/Functional/AuditingTest.php
+++ b/tests/Functional/AuditingTest.php
@@ -124,6 +124,8 @@ public function itWillAuditTheRetrievedEvent()
 
         $audit = Audit::first();
 
+        $this->assertNotNull($audit);
+
         $this->assertEmpty($audit->old_values);
 
         $this->assertEmpty($audit->new_values);
@@ -147,6 +149,8 @@ public function itWillAuditTheCreatedEvent()
 
         $audit = Audit::first();
 
+        $this->assertNotNull($audit);
+
         $this->assertEmpty($audit->old_values);
 
         Assert::assertArraySubset([
@@ -184,6 +188,8 @@ public function itWillAuditTheUpdatedEvent()
 
         $audit = Audit::first();
 
+        $this->assertNotNull($audit);
+
         Assert::assertArraySubset([
             'content' => 'N/A',
             'published_at' => null,
@@ -217,6 +223,8 @@ public function itWillAuditTheDeletedEvent()
 
         $audit = Audit::first();
 
+        $this->assertNotNull($audit);
+
         Assert::assertArraySubset([
             'title' => 'How To Audit Eloquent Models',
             'content' => 'N/A',
@@ -249,6 +257,8 @@ public function itWillAuditTheRestoredEvent()
 
         $audit = Audit::first();
 
+        $this->assertNotNull($audit);
+
         $this->assertEmpty($audit->old_values);
 
         Assert::assertArraySubset([
@@ -349,6 +359,8 @@ public function itWillAuditUsingTheDefaultDriver()
 
         $audit = Audit::first();
 
+        $this->assertNotNull($audit);
+
         $this->assertEmpty($audit->old_values);
 
         Assert::assertArraySubset([
@@ -444,8 +456,10 @@ public function itHandlesJsonColumnsCorrectly()
         $article->config = ['articleIsGood' => false, 'authorsJob' => 'vampire'];
         $article->save();
 
-        /** @var Audit $audit */
         $audit = $article->audits()->skip(1)->first();
+
+        $this->assertNotNull($audit);
+
         $this->assertSame(false, $audit->getModified()['config']['new']['articleIsGood']);
         $this->assertSame(true, $audit->getModified()['config']['old']['articleIsGood']);
     }
@@ -464,6 +478,9 @@ public function canAddAdditionalResolver()
 
         $this->assertTrue(true);
         $audit = $article->audits()->first();
+
+        $this->assertNotNull($audit);
+
         $this->assertSame(1, (int) $audit->tenant_id);
     }
 
@@ -480,6 +497,9 @@ public function canDisableResolver()
         $article = Article::factory()->create();
 
         $audit = $article->audits()->first();
+
+        $this->assertNotNull($audit);
+
         $this->assertEmpty($audit->ip_address);
     }
 
diff --git a/tests/Unit/AuditTest.php b/tests/Unit/AuditTest.php
index ba7c0303..31b1918c 100644
--- a/tests/Unit/AuditTest.php
+++ b/tests/Unit/AuditTest.php
@@ -32,8 +32,10 @@ public function itResolvesAuditData()
             'published_at' => $now,
         ]);
 
-        /** @var Audit $audit */
         $audit = $article->audits()->first();
+
+        $this->assertNotNull($audit);
+
         $resolvedData = $audit->resolveData();
         $this->assertCount(15, $resolvedData);
 
@@ -83,6 +85,8 @@ public function itResolvesAuditDataIncludingUserAttributes()
 
         $audit = $article->audits()->first();
 
+        $this->assertNotNull($audit);
+
         $this->assertCount(21, $resolvedData = $audit->resolveData());
 
         Assert::assertArraySubset([
@@ -132,6 +136,8 @@ public function itReturnsTheAppropriateAuditableDataValues()
             'published_at' => Carbon::now(),
         ])->audits()->first();
 
+        $this->assertNotNull($audit);
+
         // Resolve data, making it available to the getDataValue() method
         $this->assertCount(21, $audit->resolveData());
 
@@ -198,6 +204,8 @@ public function itReturnsAuditMetadataAsArray()
     {
         $audit = Article::factory()->create()->audits()->first();
 
+        $this->assertNotNull($audit);
+
         $this->assertCount(10, $metadata = $audit->getMetadata());
 
         Assert::assertArraySubset([
@@ -225,6 +233,8 @@ public function itReturnsProperCommandLineInUrlAuditMetadata()
     {
         $audit = factory(Article::class)->create()->audits()->first();
 
+        $this->assertNotNull($audit);
+
         self::Assert()::assertEquals($audit->getMetadata()['audit_url'], 'vendor/bin/phpunit tests/Unit/AuditTest.php --group command-line-url-resolver');
     }
 
@@ -244,9 +254,10 @@ public function itReturnsAuditMetadataIncludingUserAttributesAsArray()
 
         $this->actingAs($user);
 
-        /** @var Audit $audit */
         $audit = Article::factory()->create()->audits()->first();
 
+        $this->assertNotNull($audit);
+
         $this->assertCount(16, $metadata = $audit->getMetadata());
 
         Assert::assertArraySubset([
@@ -278,6 +289,8 @@ public function itReturnsAuditMetadataAsJsonString()
     {
         $audit = Article::factory()->create()->audits()->first();
 
+        $this->assertNotNull($audit);
+
         $metadata = $audit->getMetadata(true, JSON_PRETTY_PRINT);
 
         $created_at = $audit->getSerializedDate($audit->created_at);
@@ -316,6 +329,8 @@ public function itReturnsAuditMetadataIncludingUserAttributesAsJsonString()
 
         $audit = Article::factory()->create()->audits()->first();
 
+        $this->assertNotNull($audit);
+
         $metadata = $audit->getMetadata(true, JSON_PRETTY_PRINT);
 
         $created_at = $audit->getSerializedDate($audit->created_at);
@@ -360,6 +375,8 @@ public function itReturnsAuditableModifiedAttributesAsArray()
             'published_at' => $now,
         ])->audits()->first();
 
+        $this->assertNotNull($audit);
+
         $this->assertCount(5, $modified = $audit->getModified());
 
         Assert::assertArraySubset([
@@ -390,7 +407,6 @@ public function itReturnsAuditableModifiedAttributesAsJsonString()
     {
         $now = Carbon::now()->second(0)->microsecond(0);
 
-        /** @var Audit $audit */
         $audit = Article::factory()->create([
             'title' => 'How To Audit Eloquent Models',
             'content' => 'First step: install the laravel-auditing package.',
@@ -398,6 +414,8 @@ public function itReturnsAuditableModifiedAttributesAsJsonString()
             'published_at' => $now,
         ])->audits()->first();
 
+        $this->assertNotNull($audit);
+
         $modified = $audit->getModified(true, JSON_PRETTY_PRINT);
 
         $serializedDate = $audit->getSerializedDate($now);
diff --git a/tests/Unit/AuditableTest.php b/tests/Unit/AuditableTest.php
index a11f55f7..b8695c26 100644
--- a/tests/Unit/AuditableTest.php
+++ b/tests/Unit/AuditableTest.php
@@ -762,8 +762,10 @@ public function itExcludesAttributesFromExclude()
         $model->reviewed = 1;
         $model->save();
 
-        /** @var Audit $audit */
         $audit = Audit::all()->first();
+
+        $this->assertNotNull($audit);
+
         $this->assertArrayNotHasKey('title', $audit->getModified());
     }
 
@@ -1051,6 +1053,9 @@ public function itFailsToTransitionWhenTheAuditAuditableIdDoesNotMatchTheModelId
 
         $firstModel = Article::factory()->create();
         $firstAudit = $firstModel->audits()->first();
+
+        $this->assertNotNull($firstAudit);
+
         $firstAudit->auditable_id = $firstModel->id;
 
         $secondModel = Article::factory()->create();