diff --git a/src/Providers/Anthropic/Enums/AnthropicCacheType.php b/src/Providers/Anthropic/Enums/AnthropicCacheType.php
index e21331a..e3581e9 100644
--- a/src/Providers/Anthropic/Enums/AnthropicCacheType.php
+++ b/src/Providers/Anthropic/Enums/AnthropicCacheType.php
@@ -4,5 +4,5 @@
 
 enum AnthropicCacheType
 {
-    case ethemeral;
+    case ephemeral;
 }
diff --git a/tests/Providers/Anthropic/AnthropicTextTest.php b/tests/Providers/Anthropic/AnthropicTextTest.php
index 008dfbc..d8eb1f8 100644
--- a/tests/Providers/Anthropic/AnthropicTextTest.php
+++ b/tests/Providers/Anthropic/AnthropicTextTest.php
@@ -172,10 +172,10 @@
         ->using('anthropic', 'claude-3-5-sonnet-20240620')
         ->withMessages([
             (new SystemMessage('Old context'))->withProviderMeta(Provider::Anthropic, ['cacheType' => 'ephemeral']),
-            (new UserMessage('New context'))->withProviderMeta(Provider::Anthropic, ['cacheType' => 'ephemeral'])
+            (new UserMessage('New context'))->withProviderMeta(Provider::Anthropic, ['cacheType' => 'ephemeral']),
         ])
         ->generate();
 
     expect($response->usage->cacheWriteInputTokens)->toBe(200);
     expect($response->usage->cacheReadInputTokens)->ToBe(100);
-});
\ No newline at end of file
+});
diff --git a/tests/Providers/Anthropic/MessageMapTest.php b/tests/Providers/Anthropic/MessageMapTest.php
index 7b17821..0da1f16 100644
--- a/tests/Providers/Anthropic/MessageMapTest.php
+++ b/tests/Providers/Anthropic/MessageMapTest.php
@@ -160,13 +160,13 @@
             [
                 'type' => 'text',
                 'text' => 'Who are you?',
-                'cache_control' => ['type' => 'ethemeral'],
+                'cache_control' => ['type' => 'ephemeral'],
             ],
         ],
     ]]);
 })->with([
-    'ethemeral',
-    AnthropicCacheType::ethemeral,
+    'ephemeral',
+    AnthropicCacheType::ephemeral,
 ]);
 
 it('sets the cache type on an AssistantMessage if cacheType providerMeta is set on message using an enum', function (mixed $cacheType): void {
@@ -178,13 +178,13 @@
             [
                 'type' => 'text',
                 'text' => 'Who are you?',
-                'cache_control' => ['type' => AnthropicCacheType::ethemeral->name],
+                'cache_control' => ['type' => AnthropicCacheType::ephemeral->name],
             ],
         ],
     ]]);
 })->with([
-    'ethemeral',
-    AnthropicCacheType::ethemeral,
+    'ephemeral',
+    AnthropicCacheType::ephemeral,
 ]);
 
 it('sets the cache type on a SystemMessage if cacheType providerMeta is set on message using an enum', function (): void {})->todo('This test will need adding when the multiple system prompts PR gets merged.');
diff --git a/tests/Providers/Anthropic/ToolMapTest.php b/tests/Providers/Anthropic/ToolMapTest.php
index 70fe9a1..0de144d 100644
--- a/tests/Providers/Anthropic/ToolMapTest.php
+++ b/tests/Providers/Anthropic/ToolMapTest.php
@@ -53,9 +53,9 @@
             ],
             'required' => ['query'],
         ],
-        'cache_control' => ['type' => 'ethemeral'],
+        'cache_control' => ['type' => 'ephemeral'],
     ]]);
 })->with([
-    'ethemeral',
-    AnthropicCacheType::ethemeral,
+    'ephemeral',
+    AnthropicCacheType::ephemeral,
 ]);