diff --git a/tests/test_dispersion/test_dispersion.py b/tests/test_dispersion/test_dispersion.py
index 76319e8..9480882 100644
--- a/tests/test_dispersion/test_dispersion.py
+++ b/tests/test_dispersion/test_dispersion.py
@@ -13,7 +13,7 @@ async def dispersion_case(run_case):
 
 
 @pytest.mark.asyncio_cooperative
-async def test_dispersion(dispersion_case):
+def test_dispersion(dispersion_case):
     alphaT = 5e-5
 
     field = np.asarray(dispersion_case["50"]["ampholyte.TARTRAZINE"].getContent()["internalField"].value())
diff --git a/tests/test_exhaustible/test_exhaustible.py b/tests/test_exhaustible/test_exhaustible.py
index d267aad..180cdb2 100644
--- a/tests/test_exhaustible/test_exhaustible.py
+++ b/tests/test_exhaustible/test_exhaustible.py
@@ -12,7 +12,7 @@ async def exhaustible_case(run_case):
 
 
 @pytest.mark.asyncio_cooperative
-async def test_exhaustion(exhaustible_case):
+def test_exhaustion(exhaustible_case):
     assert len(exhaustible_case.times) >= 4
 
     remainings = []
@@ -35,7 +35,7 @@ async def test_exhaustion(exhaustible_case):
     assert all(prev >= curr for prev, curr in zip(remainings[:-1], remainings[1:]))
 
 @pytest.mark.asyncio_cooperative
-async def test_infiltration(exhaustible_case):
+def test_infiltration(exhaustible_case):
     theta0 = np.asarray(exhaustible_case[0]["theta"].getContent()["internalField"].value())
     dV = 30e-3*10e-3*0.18e-3/5000
     amount = 2e-8
@@ -53,7 +53,7 @@ async def test_infiltration(exhaustible_case):
         assert np.sum(theta - theta0)*dV + remaining == pytest.approx(amount)
 
 @pytest.mark.asyncio_cooperative
-async def test_exhausted_log(exhaustible_case):
+def test_exhausted_log(exhaustible_case):
     log = (Path(exhaustible_case.name) / "log.moistureDiffusivityFoam").read_text()
 
     assert log.count("patch left has been exhausted") == 1
diff --git a/tests/test_parallelization/test_parallelization.py b/tests/test_parallelization/test_parallelization.py
index c408c0e..d7c8f62 100644
--- a/tests/test_parallelization/test_parallelization.py
+++ b/tests/test_parallelization/test_parallelization.py
@@ -17,7 +17,7 @@ async def parallel_case(run_case):
 
 @pytest.mark.asyncio_cooperative
 @pytest.mark.parametrize("field", ["theta", "U", "C"])
-async def test_parallelization(serial_case, parallel_case, field):
+def test_parallelization(serial_case, parallel_case, field):
     assert len(serial_case.times) == len(parallel_case.times) > 1
 
     for t in serial_case.times[1:]:
diff --git a/tests/test_reaction/test_reaction.py b/tests/test_reaction/test_reaction.py
index 5337b98..5e1a4c7 100644
--- a/tests/test_reaction/test_reaction.py
+++ b/tests/test_reaction/test_reaction.py
@@ -12,7 +12,7 @@ async def reaction_case(run_case):
 
 
 @pytest.mark.asyncio_cooperative
-async def test_reaction(reaction_case):
+def test_reaction(reaction_case):
     a0 = np.asarray(reaction_case["0"]["A"].getContent()["internalField"].value())
     b0 = np.asarray(reaction_case["0"]["B"].getContent()["internalField"].value())
     c0 = np.asarray(reaction_case["0"]["C"].getContent()["internalField"].value())
diff --git a/tests/test_retardation/test_retardation.py b/tests/test_retardation/test_retardation.py
index 598c656..1962666 100644
--- a/tests/test_retardation/test_retardation.py
+++ b/tests/test_retardation/test_retardation.py
@@ -10,7 +10,7 @@ async def retardation_case(run_case):
 
 
 @pytest.mark.asyncio_cooperative
-async def test_retardation(retardation_case):
+def test_retardation(retardation_case):
     a5 = retardation_case["5"]["A"].getContent()["internalField"].value()
     b10 = retardation_case["10"]["B"].getContent()["internalField"].value()
     
diff --git a/tests/test_validity/test_validity.py b/tests/test_validity/test_validity.py
index 6f42fe8..b54aa5e 100644
--- a/tests/test_validity/test_validity.py
+++ b/tests/test_validity/test_validity.py
@@ -15,14 +15,14 @@ async def letd_case(run_case):
 
 
 @pytest.mark.asyncio_cooperative
-async def test_letxs(letxs_case):
+def test_letxs(letxs_case):
     actual = letxs_case["100"]["theta"].getContent()["internalField"].value()
     expected = letxs_case["100"]["theta.expected"].getContent()["internalField"].value()
 
     assert actual == pytest.approx(expected, abs=5e-2)
 
 @pytest.mark.asyncio_cooperative
-async def test_letd(letd_case):
+def test_letd(letd_case):
     actual = letd_case["100"]["theta"].getContent()["internalField"].value()
     expected = letd_case["100"]["theta.expected"].getContent()["internalField"].value()
 
diff --git a/tests/test_velocity/test_velocity.py b/tests/test_velocity/test_velocity.py
index 6955b3f..e98d6cb 100644
--- a/tests/test_velocity/test_velocity.py
+++ b/tests/test_velocity/test_velocity.py
@@ -12,7 +12,7 @@ async def velocity_case(run_case):
 
 
 @pytest.mark.asyncio_cooperative
-async def test_infiltration(velocity_case):
+def test_infiltration(velocity_case):
     theta0 = np.asarray(velocity_case[0]["theta"].getContent()["internalField"].value())
     U = velocity_case[0]["U"].getContent()["boundaryField"]["left"]["value"].value()[0]
     h = 30e-3/5000