diff --git a/.changeset/modern-keys-confess.md b/.changeset/modern-keys-confess.md
new file mode 100644
index 0000000000..62892aa15f
--- /dev/null
+++ b/.changeset/modern-keys-confess.md
@@ -0,0 +1,5 @@
+---
+"@directus/api": patch
+---
+
+Fixed the type check for `headers` in the Sandbox SDK request function
diff --git a/api/src/extensions/lib/sandbox/sdk/generators/request.ts b/api/src/extensions/lib/sandbox/sdk/generators/request.ts
index c1a6620d0d..267d44a36e 100644
--- a/api/src/extensions/lib/sandbox/sdk/generators/request.ts
+++ b/api/src/extensions/lib/sandbox/sdk/generators/request.ts
@@ -51,8 +51,8 @@ export function requestGenerator(requestedScopes: ExtensionSandboxRequestedScope
 			throw new TypeError('Request body has to be of type string or object');
 		}
 
-		if (headers !== undefined && headers.typeof !== 'undefined' && headers.typeof !== 'array') {
-			throw new TypeError('Request headers has to be of type array');
+		if (headers !== undefined && headers.typeof !== 'undefined' && headers.typeof !== 'object') {
+			throw new TypeError('Request headers has to be of type object');
 		}
 
 		const methodCopied = await method?.copy();