diff --git a/.github/workflows/tsan-suppressions.txt b/.github/workflows/tsan-suppressions.txt
index 2224edff4..71542ea5d 100644
--- a/.github/workflows/tsan-suppressions.txt
+++ b/.github/workflows/tsan-suppressions.txt
@@ -32,8 +32,6 @@ race:split_keys_entry_added
 # https://github.com/python/cpython/issues/129748
 race:mi_block_set_nextx
 
-# https://github.com/python/cpython/issues/130571
-race:_PyObject_GetMethod
 
 # Races because the LAPACK and BLAS in our scipy isn't TSAN instrumented.
 race:heevd_ffi
@@ -63,3 +61,6 @@ race:gemm_oncopy
 
 # https://github.com/python/cpython/issues/128133
 # race:bytes_hash
+
+# https://github.com/python/cpython/issues/130571
+# race:_PyObject_GetMethod
diff --git a/tests/pjit_test.py b/tests/pjit_test.py
index f30de44d0..f690d5744 100644
--- a/tests/pjit_test.py
+++ b/tests/pjit_test.py
@@ -7495,10 +7495,12 @@ class UtilTest(jtu.JaxTestCase):
         ),
     )
 
+  @jtu.thread_unsafe_test()
   def test_op_sharding_cache_on_mesh_pspec_sharding(self):
     ndim = 2
     mesh = jtu.create_mesh((4, 2), ('x', 'y'))
     mps1 = NamedSharding(mesh, P('x', 'y'))
+    sharding_impls.named_sharding_to_xla_hlo_sharding.cache_clear()
     op1 = mps1._to_xla_hlo_sharding(ndim)
     cache_info1 = sharding_impls.named_sharding_to_xla_hlo_sharding.cache_info()