diff --git a/poetry.lock b/poetry.lock
index 6893b47254efa4705507f421317319d5a99d8e70..4fe739a06e68f6620a5c073574d11a128a9599e0 100644
--- a/poetry.lock
+++ b/poetry.lock
@@ -382,6 +382,17 @@ version = "2.2.0"
 [package.dependencies]
 Django = ">=1.8"
 
+[[package]]
+category = "main"
+description = "Django utility for a memoization decorator that uses the Django cache framework."
+name = "django-cache-memoize"
+optional = false
+python-versions = "*"
+version = "0.1.6"
+
+[package.extras]
+dev = ["flake8", "tox", "twine", "therapist", "black"]
+
 [[package]]
 category = "main"
 description = "Database-backed Periodic Tasks."
@@ -617,17 +628,6 @@ version = "1.6.3"
 [package.dependencies]
 six = "*"
 
-[[package]]
-category = "main"
-description = "An implementation of memoization technique for Django."
-name = "django-memoize"
-optional = false
-python-versions = "*"
-version = "2.3.0"
-
-[package.dependencies]
-django = "*"
-
 [[package]]
 category = "main"
 description = "A straightforward menu generator for Django"
@@ -1912,7 +1912,7 @@ description = "A collection of helpers and mock objects for unit tests and doc t
 name = "testfixtures"
 optional = false
 python-versions = "*"
-version = "6.14.0"
+version = "6.14.1"
 
 [package.extras]
 build = ["setuptools-git", "wheel", "twine"]
@@ -2073,7 +2073,7 @@ celery = ["Celery", "django-celery-results", "django-celery-beat", "django-celer
 ldap = ["django-auth-ldap"]
 
 [metadata]
-content-hash = "afd2f4b69870b913a740e8247dbe3618d40e0b51294203c5e883b9f72427bd71"
+content-hash = "0f4a5dd1371431d369bd5d1ef0dd49286afb38daae4a1019ff085b097a38a560"
 python-versions = "^3.7"
 
 [metadata.files]
@@ -2227,6 +2227,10 @@ django-bulk-update = [
     {file = "django-bulk-update-2.2.0.tar.gz", hash = "sha256:5ab7ce8a65eac26d19143cc189c0f041d5c03b9d1b290ca240dc4f3d6aaeb337"},
     {file = "django_bulk_update-2.2.0-py2.py3-none-any.whl", hash = "sha256:49a403392ae05ea872494d74fb3dfa3515f8df5c07cc277c3dc94724c0ee6985"},
 ]
+django-cache-memoize = [
+    {file = "django-cache-memoize-0.1.6.tar.gz", hash = "sha256:7f271be70b11155929ee8a4a2b5f53c9fb46b9befa1b546caffa3298e6ac8f7d"},
+    {file = "django_cache_memoize-0.1.6-py2.py3-none-any.whl", hash = "sha256:d239e8c37734b0a70b74f94fa33b180b3b0c82c3784beb21209bb4ab64a3e6fb"},
+]
 django-celery-beat = [
     {file = "django-celery-beat-2.0.0.tar.gz", hash = "sha256:fdf1255eecfbeb770c6521fe3e69989dfc6373cd5a7f0fe62038d37f80f47e48"},
     {file = "django_celery_beat-2.0.0-py2.py3-none-any.whl", hash = "sha256:fe0b2a1b31d4a6234fea4b31986ddfd4644a48fab216ce1843f3ed0ddd2e9097"},
@@ -2306,9 +2310,6 @@ django-material = [
     {file = "django-material-1.6.3.tar.gz", hash = "sha256:f8758afe1beabc16a3c54f5437c7fea15946b7d068eedd89c97d57a363793950"},
     {file = "django_material-1.6.3-py2.py3-none-any.whl", hash = "sha256:502dc88c2f61f190fdc401666e83b47da00cbda98477af6ed8b7d43944ce6407"},
 ]
-django-memoize = [
-    {file = "django-memoize-2.3.0.tar.gz", hash = "sha256:85decffbef7d38ffc569dc96527f598e6677bbc01ce29adf722b051da7efd4be"},
-]
 django-menu-generator = [
     {file = "django-menu-generator-1.0.4.tar.gz", hash = "sha256:ce71a5055c16933c8aff64fb36c21e5cf8b6d505733aceed1252f8b99369a378"},
 ]
@@ -2417,6 +2418,8 @@ flake8-builtins = [
 ]
 flake8-django = [
     {file = "flake8-django-0.0.4.tar.gz", hash = "sha256:7329ec2e2b8b194e8109639c534359014c79df4d50b14f4b85b8395edc5d6760"},
+    {file = "flake8_django-0.0.4-py3.5.egg", hash = "sha256:ca66462724acbcf241d29edec201dac40c05cc27ae118b5abb8d74066681402f"},
+    {file = "flake8_django-0.0.4-py3.7.egg", hash = "sha256:29721a4976f784921b140752234447af1192c4e4f989d0db4e2d9f7f7915fa86"},
 ]
 flake8-docstrings = [
     {file = "flake8-docstrings-1.5.0.tar.gz", hash = "sha256:3d5a31c7ec6b7367ea6506a87ec293b94a0a46c0bce2bb4975b7f1d09b6f3717"},
@@ -2485,6 +2488,7 @@ libsass = [
     {file = "libsass-0.19.4-cp35-cp35m-manylinux1_x86_64.whl", hash = "sha256:81a013a4c2a614927fd1ef7a386eddabbba695cbb02defe8f31cf495106e974c"},
     {file = "libsass-0.19.4-cp35-cp35m-win32.whl", hash = "sha256:fcb7ab4dc81889e5fc99cafbc2017bc76996f9992fc6b175f7a80edac61d71df"},
     {file = "libsass-0.19.4-cp35-cp35m-win_amd64.whl", hash = "sha256:fc5f8336750f76f1bfae82f7e9e89ae71438d26fc4597e3ab4c05ca8fcd41d8a"},
+    {file = "libsass-0.19.4-cp36-cp36m-macosx_10_14_x86_64.whl", hash = "sha256:53f87116e7441827878bd79bbad8debac23e1930423f61ab8d837ec4a4c36e0c"},
     {file = "libsass-0.19.4-cp36-cp36m-manylinux1_x86_64.whl", hash = "sha256:9b59afa0d755089c4165516400a39a289b796b5612eeef5736ab7a1ebf96a67c"},
     {file = "libsass-0.19.4-cp36-cp36m-win32.whl", hash = "sha256:c93df526eeef90b1ea4799c1d33b6cd5aea3e9f4633738fb95c1287c13e6b404"},
     {file = "libsass-0.19.4-cp36-cp36m-win_amd64.whl", hash = "sha256:0fd8b4337b3b101c6e6afda9112cc0dc4bacb9133b59d75d65968c7317aa3272"},
@@ -2492,6 +2496,7 @@ libsass = [
     {file = "libsass-0.19.4-cp37-cp37m-manylinux1_x86_64.whl", hash = "sha256:338e9ae066bf1fde874e335324d5355c52d2081d978b4f74fc59536564b35b08"},
     {file = "libsass-0.19.4-cp37-cp37m-win32.whl", hash = "sha256:e318f06f06847ff49b1f8d086ac9ebce1e63404f7ea329adab92f4f16ba0e00e"},
     {file = "libsass-0.19.4-cp37-cp37m-win_amd64.whl", hash = "sha256:a7e685466448c9b1bf98243339793978f654a1151eb5c975f09b83c7a226f4c1"},
+    {file = "libsass-0.19.4-cp38-cp38-macosx_10_14_x86_64.whl", hash = "sha256:0fb4399f7bbecab7b181f2c2d82c3a0ba2916bf9169714b96e425355a5b23b9f"},
     {file = "libsass-0.19.4-cp38-cp38-manylinux1_x86_64.whl", hash = "sha256:6a51393d75f6e3c812785b0fa0b7d67c54258c28011921f204643b55f7355ec0"},
     {file = "libsass-0.19.4.tar.gz", hash = "sha256:8b5b6d1a7c4ea1d954e0982b04474cc076286493f6af2d0a13c2e950fbe0be95"},
 ]
@@ -2862,8 +2867,8 @@ termcolor = [
     {file = "termcolor-1.1.0.tar.gz", hash = "sha256:1d6d69ce66211143803fbc56652b41d73b4a400a2891d7bf7a1cdf4c02de613b"},
 ]
 testfixtures = [
-    {file = "testfixtures-6.14.0-py2.py3-none-any.whl", hash = "sha256:799144b3cbef7b072452d9c36cbd024fef415ab42924b96aad49dfd9c763de66"},
-    {file = "testfixtures-6.14.0.tar.gz", hash = "sha256:cdfc3d73cb6d3d4dc3c67af84d912e86bf117d30ae25f02fe823382ef99383d2"},
+    {file = "testfixtures-6.14.1-py2.py3-none-any.whl", hash = "sha256:30566e24a1b34e4d3f8c13abf62557d01eeb4480bcb8f1745467bfb0d415a7d9"},
+    {file = "testfixtures-6.14.1.tar.gz", hash = "sha256:58d2b3146d93bc5ddb0cd24e0ccacb13e29bdb61e5c81235c58f7b8ee4470366"},
 ]
 "testing.common.database" = [
     {file = "testing.common.database-2.0.3-py2.py3-none-any.whl", hash = "sha256:e3ed492bf480a87f271f74c53b262caf5d85c8bc09989a8f534fa2283ec52492"},