diff --git a/Tests/LibCrypto/TestBigInteger.cpp b/Tests/LibCrypto/TestBigInteger.cpp
index 2e08c4d6877..e3e3300da39 100644
--- a/Tests/LibCrypto/TestBigInteger.cpp
+++ b/Tests/LibCrypto/TestBigInteger.cpp
@@ -47,6 +47,12 @@ TEST_CASE(test_bigint_fib500)
     EXPECT_EQ(bigint_fibonacci(500).words(), result);
 }
 
+BENCHMARK_CASE(bench_bigint_fib100000)
+{
+    auto res = bigint_fibonacci(100000);
+    (void)res;
+}
+
 TEST_CASE(test_unsigned_bigint_addition_initialization)
 {
     Crypto::UnsignedBigInteger num1;
@@ -637,6 +643,12 @@ TEST_CASE(test_signed_bigint_fibo500)
     EXPECT_EQ(result.unsigned_value().words(), expected_result);
 }
 
+BENCHMARK_CASE(bench_signed_bigint_fib100000)
+{
+    auto res = bigint_signed_fibonacci(100000);
+    (void)res;
+}
+
 TEST_CASE(test_signed_addition_edgecase_borrow_with_zero)
 {
     Crypto::SignedBigInteger num1 { Crypto::UnsignedBigInteger { { UINT32_MAX - 3, UINT32_MAX } }, false };