diff --git a/thinc/tests/backends/test_ops.py b/thinc/tests/backends/test_ops.py
index 2712f741a..df57d1d3a 100644
--- a/thinc/tests/backends/test_ops.py
+++ b/thinc/tests/backends/test_ops.py
@@ -15,7 +15,7 @@
 
 MAX_EXAMPLES = 10
 
-VANILLA_OPS = Ops(numpy)
+VANILLA_OPS = Ops(numpy)  # type:ignore
 NUMPY_OPS = NumpyOps()
 BLIS_OPS = NumpyOps(use_blis=True)
 CPU_OPS = [NUMPY_OPS, VANILLA_OPS]
@@ -365,7 +365,7 @@ def get_lstm_args(depth, dirs, nO, batch_size, nI, draw=None):
     if draw:
         params = draw(ndarrays_of_shape(n_params))
         # For some reason this is crashing hypothesis?
-        #size_at_t = draw(ndarrays_of_shape(shape=(batch_size,), lo=1, dtype="int32"))
+        # size_at_t = draw(ndarrays_of_shape(shape=(batch_size,), lo=1, dtype="int32"))
         size_at_t = numpy.ones(shape=(batch_size,), dtype="int32")
         X = draw(ndarrays_of_shape((int(size_at_t.sum()), nI)))
     else:
diff --git a/thinc/tests/test_util.py b/thinc/tests/test_util.py
index 3736aaaba..69aac829a 100644
--- a/thinc/tests/test_util.py
+++ b/thinc/tests/test_util.py
@@ -13,13 +13,13 @@
         (numpy.array(1), 0),
         (numpy.array([1, 2]), 3),
         ([numpy.zeros((1, 2)), numpy.zeros((1))], 2),
-        (Ragged(numpy.zeros((1, 2)), numpy.zeros(1)), 2),
+        (Ragged(numpy.zeros((1, 2)), numpy.zeros(1)), 2),  # type:ignore
         (
             Padded(
-                numpy.zeros((2, 1, 2)),
-                numpy.zeros(2),
-                numpy.array([1, 0]),
-                numpy.array([0, 1]),
+                numpy.zeros((2, 1, 2)),  # type:ignore
+                numpy.zeros(2),  # type:ignore
+                numpy.array([1, 0]),  # type:ignore
+                numpy.array([0, 1]),  # type:ignore
             ),
             2,
         ),