diff --git a/abp/viz.py b/abp/viz.py
index fb38462..5efa0f9 100644
--- a/abp/viz.py
+++ b/abp/viz.py
@@ -1,6 +1,6 @@
 import networkx as nx
 from matplotlib import pyplot as plt
-import tables
+import clifford
 import numpy as np
 from graph import GraphState
 
diff --git a/tests/test_graph.py b/tests/test_graph.py
index b5f6e4a..d761062 100644
--- a/tests/test_graph.py
+++ b/tests/test_graph.py
@@ -1,5 +1,5 @@
 from abp.graph import GraphState
-import abp.tables as tables
+from abp import clifford
 import time
 
 
diff --git a/tests/test_normalize_global_phase.py b/tests/test_normalize_global_phase.py
index b1e8d2e..fcb7c36 100644
--- a/tests/test_normalize_global_phase.py
+++ b/tests/test_normalize_global_phase.py
@@ -1,4 +1,4 @@
-from abp import make_tables
+from abp import clifford
 from abp import qi
 import numpy as np
 
@@ -7,5 +7,5 @@ def test_normalize_global_phase():
         u = qi.pz
         phase = np.random.uniform(0, 2*np.pi)
         m = np.exp(1j*phase) * u
-        normalized = make_tables.normalize_global_phase(m)
+        normalized = clifford.normalize_global_phase(m)
         assert np.allclose(normalized, u)