diff --git a/poetry.lock b/poetry.lock
index 940a610b6..35bc3df41 100644
--- a/poetry.lock
+++ b/poetry.lock
@@ -174,7 +174,7 @@ webencodings = "*"
 name = "cached-property"
 version = "1.5.2"
 description = "A decorator for caching properties in classes."
-category = "main"
+category = "dev"
 optional = false
 python-versions = "*"
 
@@ -413,15 +413,15 @@ protobuf = ["grpcio-tools (>=1.37.0)"]
 
 [[package]]
 name = "h5py"
-version = "3.2.1"
+version = "2.10.0"
 description = "Read and write HDF5 files from Python"
 category = "main"
 optional = true
-python-versions = ">=3.7"
+python-versions = "*"
 
 [package.dependencies]
-cached-property = {version = "*", markers = "python_version < \"3.8\""}
-numpy = {version = ">=1.14.5", markers = "python_version == \"3.7\""}
+numpy = ">=1.7"
+six = "*"
 
 [[package]]
 name = "identify"
@@ -952,11 +952,11 @@ test = ["pytest", "coverage", "requests", "nbval", "selenium", "pytest-cov", "re
 
 [[package]]
 name = "numpy"
-version = "1.20.2"
+version = "1.18.5"
 description = "NumPy is the fundamental package for array computing with Python."
 category = "main"
 optional = false
-python-versions = ">=3.7"
+python-versions = ">=3.5"
 
 [[package]]
 name = "opt-einsum"
@@ -1159,7 +1159,7 @@ snowballstemmer = "*"
 
 [[package]]
 name = "pyerfa"
-version = "1.7.2"
+version = "1.7.3"
 description = "Python bindings for ERFA"
 category = "main"
 optional = false
@@ -1281,8 +1281,8 @@ python-versions = "*"
 
 [[package]]
 name = "pywinpty"
-version = "0.5.7"
-description = "Python bindings for the winpty library"
+version = "1.0.1"
+description = "Pseudo terminal support for Windows from Python."
 category = "dev"
 optional = false
 python-versions = "*"
@@ -1317,7 +1317,7 @@ python-versions = "*"
 
 [[package]]
 name = "reorder-python-imports"
-version = "2.4.0"
+version = "2.5.0"
 description = "Tool for reordering python imports"
 category = "dev"
 optional = false
@@ -1370,7 +1370,7 @@ test = ["pytest (>=5.2.0)", "pytest-cov (>=2.7.0)", "pytest-localserver", "pytes
 
 [[package]]
 name = "scipy"
-version = "1.6.2"
+version = "1.6.3"
 description = "SciPy: Scientific Library for Python"
 category = "main"
 optional = false
@@ -1546,7 +1546,7 @@ werkzeug = ">=0.11.15"
 
 [[package]]
 name = "tensorflow"
-version = "1.15.3"
+version = "1.15.5"
 description = "TensorFlow is an open source machine learning framework for everyone."
 category = "main"
 optional = true
@@ -1558,9 +1558,10 @@ astor = ">=0.6.0"
 gast = "0.2.2"
 google-pasta = ">=0.1.6"
 grpcio = ">=1.8.6"
+h5py = "<=2.10.0"
 keras-applications = ">=1.0.8"
 keras-preprocessing = ">=1.0.5"
-numpy = ">=1.16.0,<2.0"
+numpy = ">=1.16.0,<1.19.0"
 opt-einsum = ">=2.3.2"
 protobuf = ">=3.6.1"
 six = ">=1.10.0"
@@ -1785,7 +1786,7 @@ galsim-hub = ["galsim-hub", "tensorflow"]
 [metadata]
 lock-version = "1.1"
 python-versions = "~3.7"
-content-hash = "1c7c46213733ab3037a598f4bb45294fcab7f55163889202db8a597ada055dbb"
+content-hash = "1037a509d32b84c21d2f1ad95598519930118b757f7b5eaf384a891f164c87f7"
 
 [metadata.files]
 absl-py = [
@@ -2140,16 +2141,35 @@ grpcio = [
     {file = "grpcio-1.37.0.tar.gz", hash = "sha256:b3ce16aa91569760fdabd77ca901b2288152eb16941d28edd9a3a75a0c4a8a85"},
 ]
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@@ -2392,30 +2412,27 @@ notebook = [
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-    {file = "scipy-1.6.2-cp39-cp39-macosx_10_9_x86_64.whl", hash = "sha256:c1d3f771c19af00e1a36f749bd0a0690cc64632783383bc68f77587358feb5a4"},
-    {file = "scipy-1.6.2-cp39-cp39-manylinux1_i686.whl", hash = "sha256:50e5bcd9d45262725e652611bb104ac0919fd25ecb78c22f5282afabd0b2e189"},
-    {file = "scipy-1.6.2-cp39-cp39-manylinux1_x86_64.whl", hash = "sha256:816951e73d253a41fa2fd5f956f8e8d9ac94148a9a2039e7db56994520582bf2"},
-    {file = "scipy-1.6.2-cp39-cp39-manylinux2014_aarch64.whl", hash = "sha256:1fba8a214c89b995e3721670e66f7053da82e7e5d0fe6b31d8e4b19922a9315e"},
-    {file = "scipy-1.6.2-cp39-cp39-win32.whl", hash = "sha256:e89091e6a8e211269e23f049473b2fde0c0e5ae0dd5bd276c3fc91b97da83480"},
-    {file = "scipy-1.6.2-cp39-cp39-win_amd64.whl", hash = "sha256:d744657c27c128e357de2f0fd532c09c84cd6e4933e8232895a872e67059ac37"},
-    {file = "scipy-1.6.2.tar.gz", hash = "sha256:e9da33e21c9bc1b92c20b5328adb13e5f193b924c9b969cd700c8908f315aa59"},
+    {file = "scipy-1.6.3-cp37-cp37m-macosx_10_9_x86_64.whl", hash = "sha256:2a799714bf1f791fb2650d73222b248d18d53fd40d6af2df2c898db048189606"},
+    {file = "scipy-1.6.3-cp37-cp37m-manylinux1_i686.whl", hash = "sha256:9e3302149a369697c6aaea18b430b216e3c88f9a61b62869f6104881e5f9ef85"},
+    {file = "scipy-1.6.3-cp37-cp37m-manylinux1_x86_64.whl", hash = "sha256:b79104878003487e2b4639a20b9092b02e1bad07fc4cf924b495cf413748a777"},
+    {file = "scipy-1.6.3-cp37-cp37m-manylinux2014_aarch64.whl", hash = "sha256:44d452850f77e65e25b1eb1ac01e25770323a782bfe3a1a3e43847ad4266d93d"},
+    {file = "scipy-1.6.3-cp37-cp37m-win32.whl", hash = "sha256:b30280fbc1fd8082ac822994a98632111810311a9ece71a0e48f739df3c555a2"},
+    {file = "scipy-1.6.3-cp37-cp37m-win_amd64.whl", hash = "sha256:10dbcc7de03b8d635a1031cb18fd3eaa997969b64fdf78f99f19ac163a825445"},
+    {file = "scipy-1.6.3-cp38-cp38-macosx_10_9_x86_64.whl", hash = "sha256:1b21c6e0dc97b1762590b70dee0daddb291271be0580384d39f02c480b78290a"},
+    {file = "scipy-1.6.3-cp38-cp38-manylinux1_i686.whl", hash = "sha256:1caade0ede6967cc675e235c41451f9fb89ae34319ddf4740194094ab736b88d"},
+    {file = "scipy-1.6.3-cp38-cp38-manylinux1_x86_64.whl", hash = "sha256:19aeac1ad3e57338723f4657ac8520f41714804568f2e30bd547d684d72c392e"},
+    {file = "scipy-1.6.3-cp38-cp38-manylinux2014_aarch64.whl", hash = "sha256:ad7269254de06743fb4768f658753de47d8b54e4672c5ebe8612a007a088bd48"},
+    {file = "scipy-1.6.3-cp38-cp38-win32.whl", hash = "sha256:d647757373985207af3343301d89fe738d5a294435a4f2aafb04c13b4388c896"},
+    {file = "scipy-1.6.3-cp38-cp38-win_amd64.whl", hash = "sha256:33d1677d46111cfa1c84b87472a0274dde9ef4a7ef2e1f155f012f5f1e995d8f"},
+    {file = "scipy-1.6.3-cp39-cp39-macosx_10_9_x86_64.whl", hash = "sha256:d449d40e830366b4c612692ad19fbebb722b6b847f78a7b701b1e0d6cda3cc13"},
+    {file = "scipy-1.6.3-cp39-cp39-manylinux1_i686.whl", hash = "sha256:23995dfcf269ec3735e5a8c80cfceaf384369a47699df111a6246b83a55da582"},
+    {file = "scipy-1.6.3-cp39-cp39-manylinux1_x86_64.whl", hash = "sha256:fdf606341cd798530b05705c87779606fcdfaf768a8129c348ea94441da15b04"},
+    {file = "scipy-1.6.3-cp39-cp39-manylinux2014_aarch64.whl", hash = "sha256:f68eb46b86b2c246af99fcaa6f6e37c7a7a413e1084a794990b877f2ff71f7b6"},
+    {file = "scipy-1.6.3-cp39-cp39-win32.whl", hash = "sha256:01b38dec7e9f897d4db04f8de4e20f0f5be3feac98468188a0f47a991b796055"},
+    {file = "scipy-1.6.3-cp39-cp39-win_amd64.whl", hash = "sha256:3274ce145b5dc416c49c0cf8b6119f787f0965cd35e22058fe1932c09fe15d77"},
+    {file = "scipy-1.6.3.tar.gz", hash = "sha256:a75b014d3294fce26852a9d04ea27b5671d86736beb34acdfc05859246260707"},
 ]
 send2trash = [
     {file = "Send2Trash-1.5.0-py3-none-any.whl", hash = "sha256:f1691922577b6fa12821234aeb57599d887c4900b9ca537948d2dac34aea888b"},
@@ -2896,15 +2908,12 @@ tensorboard = [
     {file = "tensorboard-1.15.0-py3-none-any.whl", hash = "sha256:4cad2c65f6011e51609b463014c014fd7c6ddd9c1263af1d4f18dd97ed88c2bc"},
 ]
 tensorflow = [
-    {file = "tensorflow-1.15.3-cp35-cp35m-macosx_10_11_x86_64.whl", hash = "sha256:aa914686bf01e88c8de9189f81e8655cdc2d22fa3d22e35b6edcb2693ca07c9c"},
-    {file = "tensorflow-1.15.3-cp35-cp35m-manylinux2010_x86_64.whl", hash = "sha256:b4cf038262d49819699d262c029c704f7b35636534c9c214ce78d2242eb12dbd"},
-    {file = "tensorflow-1.15.3-cp35-cp35m-win_amd64.whl", hash = "sha256:d3f4e8dc63cbeb67889260b9a7ecb4ec6386a84278518703c7b0bdea28eadf52"},
-    {file = "tensorflow-1.15.3-cp36-cp36m-macosx_10_11_x86_64.whl", hash = "sha256:e4eb6793874a312ffa5aaca98a81bed2f07ae9a0eb5ccbe9a674f76c83f84ca8"},
-    {file = "tensorflow-1.15.3-cp36-cp36m-manylinux2010_x86_64.whl", hash = "sha256:db8a7867e3d6461b28c1a3efae5cdb12a0fe4a1bbc140f22b9fba282c82115bc"},
-    {file = "tensorflow-1.15.3-cp36-cp36m-win_amd64.whl", hash = "sha256:dc5d0763fa8e6422dc8781fd0e06e39ae653f58c477fdbeab19793064c27f4a1"},
-    {file = "tensorflow-1.15.3-cp37-cp37m-macosx_10_11_x86_64.whl", hash = "sha256:787044ff47d3f83ba892edbeea980f448e208ef15472b49ca87715ae103b526b"},
-    {file = "tensorflow-1.15.3-cp37-cp37m-manylinux2010_x86_64.whl", hash = "sha256:d4c6caed7eebdc98521f2355c6415232f6c2d1730a924847e6bb6fccd095ec8c"},
-    {file = "tensorflow-1.15.3-cp37-cp37m-win_amd64.whl", hash = "sha256:b8999705cf2cce5fa3004aa8b1448b9b8b6d387ecaed860f757c5612326f0827"},
+    {file = "tensorflow-1.15.5-cp36-cp36m-macosx_10_9_x86_64.whl", hash = "sha256:64c7c3ff7e7506a3b4d48174e9217066a99be59a1d18463a585f3145bad59f0b"},
+    {file = "tensorflow-1.15.5-cp36-cp36m-manylinux2010_x86_64.whl", hash = "sha256:530c35578b48462df88253e9196f7fbe1815e2932a340295b025072b58d6e3da"},
+    {file = "tensorflow-1.15.5-cp36-cp36m-win_amd64.whl", hash = "sha256:ef95b6b5b9d408a0181575b0ae82ab1fbd99474a528c546d01939bff26de681a"},
+    {file = "tensorflow-1.15.5-cp37-cp37m-macosx_10_9_x86_64.whl", hash = "sha256:c9c73bb0302dbfd7d4a76dc7024ff58b23016633e2ce8295a4ec213d75e51f1f"},
+    {file = "tensorflow-1.15.5-cp37-cp37m-manylinux2010_x86_64.whl", hash = "sha256:29831dda98d668067de75403b2fca0d06a2f026ef6f217fa2ca873c20b4ee4d3"},
+    {file = "tensorflow-1.15.5-cp37-cp37m-win_amd64.whl", hash = "sha256:030453973e837301d08ab1a5cbd4adc87876216843861c71bc6429769ec596b0"},
 ]
 tensorflow-estimator = [
     {file = "tensorflow_estimator-1.15.1-py2.py3-none-any.whl", hash = "sha256:8853bfb7c3c96fbdc80b3d66c37a10af6ccbcd235dc87474764270c02a0f86b9"},
diff --git a/pyproject.toml b/pyproject.toml
index a0e99a18f..03400f2e1 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -35,7 +35,7 @@ python = "~3.7"
 scikit-image = "^0.18.0"
 scipy = "^1.4.1"
 sep = "^1.1.1"
-tensorflow = {version = "1.15.3", optional = true}
+tensorflow = {version = "1.15.5", optional = true}
 
 [tool.poetry.dev-dependencies]
 Cython = "^0.29.21"
diff --git a/requirements.txt b/requirements.txt
index bcb9543c9..19728d395 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -13,7 +13,7 @@ babel==2.9.0; python_version >= "3.6" and python_full_version < "3.0.0" or pytho
 backcall==0.2.0; python_version >= "3.7"
 black==20.8b1; python_version >= "3.6"
 bleach==3.3.0; python_version >= "3.6" and python_full_version < "3.0.0" or python_full_version >= "3.5.0" and python_version >= "3.6"
-cached-property==1.5.2; python_version < "3.8" and python_version >= "3.7" and python_full_version >= "3.6.1"
+cached-property==1.5.2; python_full_version >= "3.6.1"
 certifi==2020.12.5; python_version >= "3.6" and python_full_version < "3.0.0" or python_full_version >= "3.5.0" and python_version >= "3.6"
 cffi==1.14.5; python_full_version >= "3.6.1" and python_version >= "3.6" and implementation_name == "pypy"
 cfgv==3.2.0; python_full_version >= "3.6.1"
@@ -38,7 +38,7 @@ galsim==2.2.5
 gast==0.2.2; python_version >= "2.7" and python_full_version < "3.0.0" or python_full_version >= "3.4.0"
 google-pasta==0.2.0
 grpcio==1.37.0; python_version >= "2.7" and python_full_version < "3.0.0" or python_full_version >= "3.2.0"
-h5py==3.2.1; python_version >= "3.7"
+h5py==2.10.0
 identify==2.2.4; python_full_version >= "3.6.1"
 idna==2.10; python_version >= "3.6" and python_full_version < "3.0.0" or python_full_version >= "3.5.0" and python_version >= "3.6"
 imageio==2.9.0; python_version >= "3.7"
@@ -75,7 +75,7 @@ nest-asyncio==1.5.1; python_full_version >= "3.6.1" and python_version >= "3.6"
 networkx==2.5.1; python_version >= "3.7"
 nodeenv==1.6.0; python_full_version >= "3.6.1"
 notebook==6.3.0; python_version >= "3.6"
-numpy==1.20.2; python_version >= "3.7"
+numpy==1.18.5; python_version >= "3.5"
 opt-einsum==3.3.0; python_version >= "3.5"
 packaging==20.9; python_version >= "3.6" and python_full_version < "3.0.0" or python_full_version >= "3.5.0" and python_version >= "3.6"
 pandocfilters==1.4.3; python_version >= "3.6" and python_full_version < "3.0.0" or python_full_version >= "3.4.0" and python_version >= "3.6"
@@ -95,7 +95,7 @@ pybind11==2.6.2; (python_version >= "2.7" and python_version < "3.0") or (python
 pycodestyle==2.7.0; python_version >= "3.4" and python_full_version < "3.0.0" or python_full_version >= "3.5.0" and python_version >= "3.4"
 pycparser==2.20; python_version >= "2.7" and python_full_version < "3.0.0" or python_full_version >= "3.4.0"
 pydocstyle==5.1.1; python_version >= "3.5"
-pyerfa==1.7.2; python_version >= "3.7"
+pyerfa==1.7.3; python_version >= "3.7"
 pyflakes==2.3.1; python_version >= "3.4" and python_full_version < "3.0.0" or python_full_version >= "3.5.0" and python_version >= "3.4"
 pygments==2.8.1; python_version >= "3.7"
 pyparsing==2.4.7; python_version >= "3.7" and python_full_version < "3.0.0" or python_full_version >= "3.4.0" and python_version >= "3.7"
@@ -106,14 +106,14 @@ python-dateutil==2.8.1; python_full_version >= "3.6.1" and python_version >= "3.
 pytz==2021.1; python_version >= "3.6" and python_full_version < "3.0.0" or python_full_version >= "3.4.0" and python_version >= "3.6"
 pywavelets==1.1.1; python_version >= "3.7"
 pywin32==300; sys_platform == "win32" and python_version >= "3.6"
-pywinpty==0.5.7; os_name == "nt" and python_version >= "3.6"
+pywinpty==1.0.1; os_name == "nt" and python_version >= "3.6"
 pyyaml==5.4.1; python_full_version >= "3.6.1"
 pyzmq==22.0.3; python_full_version >= "3.6.1" and python_version >= "3.6"
 regex==2021.4.4; python_version >= "3.6"
-reorder-python-imports==2.4.0; python_full_version >= "3.6.1"
+reorder-python-imports==2.5.0; python_full_version >= "3.6.1"
 requests==2.25.1; python_version >= "3.6" and python_full_version < "3.0.0" or python_full_version >= "3.5.0" and python_version >= "3.6"
 scikit-image==0.18.1; python_version >= "3.7"
-scipy==1.6.2; python_version >= "3.7" and python_version < "3.10"
+scipy==1.6.3; python_version >= "3.7" and python_version < "3.10"
 send2trash==1.5.0; python_version >= "3.6"
 sep==1.1.1; python_version >= "3.5"
 six==1.15.0; python_full_version >= "3.6.1" and python_version >= "3.7" and (python_version >= "3.6" and python_full_version < "3.0.0" or python_full_version >= "3.5.0" and python_version >= "3.6") and (python_version >= "3.6" and python_full_version < "3.0.0" or python_full_version >= "3.3.0" and python_version >= "3.6")
@@ -129,7 +129,7 @@ sphinxcontrib-serializinghtml==1.1.4; python_version >= "3.6"
 tensorboard==1.15.0; python_version >= "2.7" and python_full_version < "3.0.0" or python_full_version >= "3.2.0"
 tensorflow-estimator==1.15.1
 tensorflow-hub==0.12.0
-tensorflow==1.15.3
+tensorflow==1.15.5
 termcolor==1.1.0
 terminado==0.9.4; python_version >= "3.6"
 testpath==0.4.4; python_version >= "3.6"