diff --git a/tests/4_determinant/test.js b/tests/4_determinant/test.js
deleted file mode 100644
index b07cd21..0000000
--- a/tests/4_determinant/test.js
+++ /dev/null
@@ -1,18 +0,0 @@
-export default {
-  functionName: 'calculateDeterminant',
-  prompt: `// Write an async JavaScript function 'calculateDeterminant' that calculates the determinant of a square matrix.
-// - The function must accept an n x n matrix, represented as an array of arrays.
-// - You MUST use a dynamic import() to load the 'mathjs' library from a CDN.
-// - You MUST use the library's built-in 'det' function to perform the calculation.
-// - The function should return the determinant value.`,
-  runTest: async (calculateDeterminant) => {
-    const assert = {
-      strictEqual: (a, e, m) => { if (a !== e) throw new Error(m || `FAIL: ${a} !== ${e}`) },
-    };
-    const matrix = [[1, 2, 3], [4, 5, 6], [7, 8, 9]];
-    const det = await calculateDeterminant(matrix);
-    assert.strictEqual(det, 0, "Test Failed: Determinant should be 0.");
-  }
-};
-
-