diff --git a/tests/test_blspy_fidelity.py b/tests/test_blspy_fidelity.py
index 9af92566c..8e89a1dd4 100644
--- a/tests/test_blspy_fidelity.py
+++ b/tests/test_blspy_fidelity.py
@@ -4,6 +4,7 @@
 import sys
 from typing import Any, Type
 import pytest
+from concurrent.futures import ThreadPoolExecutor
 
 
 def randbytes(n: int) -> bytes:
@@ -16,7 +17,8 @@ def randbytes(n: int) -> bytes:
 # make sure chia_rs counterpart behaves the same as blspy
 def test_bls() -> None:
     print()
-    for round in range(200):
+
+    def run_test_suite(round: int) -> None:
         sys.stdout.write(f"\r{round} ")
         sys.stdout.flush()
         seed = randbytes(32)
@@ -210,6 +212,11 @@ def test_bls() -> None:
             with pytest.raises(ValueError, match="invalid length"):
                 obj2 = klass.from_json_dict(bytes(obj) + b"a")
 
+    pool = ThreadPoolExecutor(max_workers=8)
+    for round in range(200):
+        pool.submit(run_test_suite, round)
+    pool.shutdown()
+
 
 # ------------------------------------- 8< ----------------------------------
 #
diff --git a/wheel/src/api.rs b/wheel/src/api.rs
index 51f661978..f100bd97c 100644
--- a/wheel/src/api.rs
+++ b/wheel/src/api.rs
@@ -292,12 +292,13 @@ impl AugSchemeMPL {
     }
 
     #[staticmethod]
-    pub fn verify(pk: &PublicKey, msg: &[u8], sig: &Signature) -> bool {
-        chia_bls::verify(sig, pk, msg)
+    pub fn verify(py: Python<'_>, pk: &PublicKey, msg: &[u8], sig: &Signature) -> bool {
+        py.allow_threads(|| chia_bls::verify(sig, pk, msg))
     }
 
     #[staticmethod]
     pub fn aggregate_verify(
+        py: Python<'_>,
         pks: &Bound<'_, PyList>,
         msgs: &Bound<'_, PyList>,
         sig: &Signature,
@@ -314,7 +315,7 @@ impl AugSchemeMPL {
             data.push((pk, msg));
         }
 
-        Ok(chia_bls::aggregate_verify(sig, data))
+        py.allow_threads(|| Ok(chia_bls::aggregate_verify(sig, data)))
     }
 
     #[staticmethod]