diff --git a/requirements.txt b/requirements.txt
index 7f3f87529..fee654528 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -3,3 +3,4 @@ numpy
 scipy
 plotly
 pandas
+networkx
diff --git a/rtd-requirements.txt b/rtd-requirements.txt
index 8cd89fff9..610f7d4e9 100644
--- a/rtd-requirements.txt
+++ b/rtd-requirements.txt
@@ -3,6 +3,7 @@ numpy
 scipy
 plotly
 pandas
+networkx
 numpydoc
 sphinx==6.2.1
 sphinx_rtd_theme>=1.2.2
diff --git a/setup.py b/setup.py
index ebd67f1ef..07149e574 100644
--- a/setup.py
+++ b/setup.py
@@ -273,10 +273,11 @@ def setup_with_extensions(extensions=None):
             'numpy>=1.15.0',
             'scipy',
             'plotly',
-            'pandas'
+            'pandas',
+            'networkx'
         ],
         extras_require=extras,
-        python_requires='>=3.5',
+        python_requires='>=3.8',
         platforms=["any"],
         url='http://www.pygsti.info',
         download_url='https://github.com/pyGSTio/pyGSTi/tarball/master',
diff --git a/test/test_packages/extras/test_interpygate.py b/test/test_packages/extras/test_interpygate.py
index 97e76e936..238baf8f9 100644
--- a/test/test_packages/extras/test_interpygate.py
+++ b/test/test_packages/extras/test_interpygate.py
@@ -102,7 +102,7 @@ def advance(self, state, v, times):
         L = dephasing * self.dephasing_generator + decoherence * self.decoherence_generator
 
         processes = [change_basis(_expm((H + L) * t), 'pp', 'col') for t in times]
-        states = [unvec_square(_np.dot(process, _np.outer(state, state.conj())).ravel(order='F'),'F') for process in processes]
+        states = [unvec_square(_np.dot(process, _np.outer(state, state.conj()).ravel(order='F')),'F') for process in processes]
 
         return states