diff --git a/python/setup.py b/python/setup.py
index d0cfe246..acc21dd0 100644
--- a/python/setup.py
+++ b/python/setup.py
@@ -10,10 +10,11 @@
 # The same modules should appear in the requirements.txt file as given below.
 setuptools.setup(
     name='lib_mic_array',
+    packages=setuptools.find_packages(),
     install_requires=[
         "flake8~=3.8",
         "matplotlib~=3.3",
-        "numpy~=1.19",
+        "numpy~=1.18",
         "pylint~=2.5",
         "pytest~=6.0",
         "pytest-xdist~=1.34",
diff --git a/requirements.txt b/requirements.txt
index 1fc594f3..2e52a4d4 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -18,7 +18,9 @@
 # same modules should appear in the setup.py list as given below.
 flake8==3.8.3
 matplotlib==3.3.1
-numpy==1.19.1
+
+# Pin numpy to 1.18.5 due to tensorflow v2.1.1 hard pinning it to that version.
+numpy==1.18.5
 pylint==2.5.3
 pytest==6.0.0
 pytest-xdist==1.34.0