diff --git a/pyproject.toml b/pyproject.toml
index f3df243..2742b2f 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -1,6 +1,6 @@
 [project]
 name = "manageprojects"
-version = "0.8.2"
+version = "0.8.3"
 description = "Manage Python / Django projects"
 readme = "README.md"
 authors = [
@@ -15,7 +15,6 @@ dependencies = [
     "rich-click",  # https://github.com/ewels/rich-click
     "rich",  # https://github.com/Textualize/rich
     "packaging",  # https://github.com/pypa/packaging
-    "tox",  # https://github.com/tox-dev/tox
     "darker>=1.7",  # https://github.com/akaihola/darker
     "autopep8",  # https://github.com/hhatto/autopep8
     "pyupgrade",  # https://github.com/asottile/pyupgrade
@@ -31,7 +30,7 @@ dependencies = [
 [project.optional-dependencies]
 dev = [
     "pip-tools",  # https://github.com/jazzband/pip-tools/
-    "tox",  # https://github.com/tox-dev/tox
+    "tox>=4.4.5",  # https://github.com/tox-dev/tox
     "coveralls",  # https://github.com/TheKevJames/coveralls-python
     "tomli",  # https://github.com/hukkin/tomli
     "twine",  # https://github.com/pypa/twine
diff --git a/requirements.txt b/requirements.txt
index c211afc..5792a0b 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -20,41 +20,24 @@ binaryornot==0.4.4 \
     --hash=sha256:359501dfc9d40632edc9fac890e19542db1a287bbcfa58175b66658392018061 \
     --hash=sha256:b8b71173c917bddcd2c16070412e369c3ed7f0528926f70cac18a6c97fd563e4
     # via cookiecutter
-black==23.1.0 \
-    --hash=sha256:0052dba51dec07ed029ed61b18183942043e00008ec65d5028814afaab9a22fd \
-    --hash=sha256:0680d4380db3719ebcfb2613f34e86c8e6d15ffeabcf8ec59355c5e7b85bb555 \
-    --hash=sha256:121ca7f10b4a01fd99951234abdbd97728e1240be89fde18480ffac16503d481 \
-    --hash=sha256:162e37d49e93bd6eb6f1afc3e17a3d23a823042530c37c3c42eeeaf026f38468 \
-    --hash=sha256:2a951cc83ab535d248c89f300eccbd625e80ab880fbcfb5ac8afb5f01a258ac9 \
-    --hash=sha256:2bf649fda611c8550ca9d7592b69f0637218c2369b7744694c5e4902873b2f3a \
-    --hash=sha256:382998821f58e5c8238d3166c492139573325287820963d2f7de4d518bd76958 \
-    --hash=sha256:49f7b39e30f326a34b5c9a4213213a6b221d7ae9d58ec70df1c4a307cf2a1580 \
-    --hash=sha256:57c18c5165c1dbe291d5306e53fb3988122890e57bd9b3dcb75f967f13411a26 \
-    --hash=sha256:7a0f701d314cfa0896b9001df70a530eb2472babb76086344e688829efd97d32 \
-    --hash=sha256:8178318cb74f98bc571eef19068f6ab5613b3e59d4f47771582f04e175570ed8 \
-    --hash=sha256:8b70eb40a78dfac24842458476135f9b99ab952dd3f2dab738c1881a9b38b753 \
-    --hash=sha256:9880d7d419bb7e709b37e28deb5e68a49227713b623c72b2b931028ea65f619b \
-    --hash=sha256:9afd3f493666a0cd8f8df9a0200c6359ac53940cbde049dcb1a7eb6ee2dd7074 \
-    --hash=sha256:a29650759a6a0944e7cca036674655c2f0f63806ddecc45ed40b7b8aa314b651 \
-    --hash=sha256:a436e7881d33acaf2536c46a454bb964a50eff59b21b51c6ccf5a40601fbef24 \
-    --hash=sha256:a59db0a2094d2259c554676403fa2fac3473ccf1354c1c63eccf7ae65aac8ab6 \
-    --hash=sha256:a8471939da5e824b891b25751955be52ee7f8a30a916d570a5ba8e0f2eb2ecad \
-    --hash=sha256:b0bd97bea8903f5a2ba7219257a44e3f1f9d00073d6cc1add68f0beec69692ac \
-    --hash=sha256:b6a92a41ee34b883b359998f0c8e6eb8e99803aa8bf3123bf2b2e6fec505a221 \
-    --hash=sha256:bb460c8561c8c1bec7824ecbc3ce085eb50005883a6203dcfb0122e95797ee06 \
-    --hash=sha256:bfffba28dc52a58f04492181392ee380e95262af14ee01d4bc7bb1b1c6ca8d27 \
-    --hash=sha256:c1c476bc7b7d021321e7d93dc2cbd78ce103b84d5a4cf97ed535fbc0d6660648 \
-    --hash=sha256:c91dfc2c2a4e50df0026f88d2215e166616e0c80e86004d0003ece0488db2739 \
-    --hash=sha256:e6663f91b6feca5d06f2ccd49a10f254f9298cc1f7f49c46e498a0771b507104
+black==23.1a1 \
+    --hash=sha256:0b945a5a1e5a5321f884de0061d5a8585d947c9b608e37b6d26ceee4dfdf4b62 \
+    --hash=sha256:4db1d8027ce7ae53f0ccf02b0be0b8808fefb291d6cb1543420f4165d96d364c \
+    --hash=sha256:5fb7641d442ede92538bc70fa0201f884753a7d0f62f26c722b7b00301b95902 \
+    --hash=sha256:63330069d8ec909cf4e2c4d43a7f00aeb03335430ef9fec6cd2328e6ebde8a77 \
+    --hash=sha256:793c9176beb2adf295f6b863d9a4dc953fe2ac359ca3da108d71d14cb2c09e52 \
+    --hash=sha256:85dede655442f5e246e7abd667fe07e14916897ba52f3640b5489bf11f7dbf67 \
+    --hash=sha256:88288a645402106b8eb9f50d7340ae741e16240bb01c2eed8466549153daa96e \
+    --hash=sha256:88ec25a64063945b4591b6378bead544c5d3260de1c93ad96f3ad2d76ddd76fd \
+    --hash=sha256:8dff6f0157e47fbbeada046fca144b6557d3be2fb2602d668881cd179f04a352 \
+    --hash=sha256:ca658b69260a18bf7aa0b0a6562dbbd304a737487d1318998aaca5a75901fd2c \
+    --hash=sha256:ddbf9da228726d46f45c29024263e160d41030a415097254817d65127012d1a2 \
+    --hash=sha256:e88e4b633d64b9e7adc4a6b922f52bb204af9f90d7b1e3317e6490f2b598b1ea
     # via darker
 bx-py-utils==75 \
     --hash=sha256:2cd1053197e579f12b3d1b942f77c9736838c63cd13035db3fe5cb426283c458 \
     --hash=sha256:8b5aefea276516217bcb1b99af7c28020448d2595439c44927d0f5a880ce0c8b
     # via manageprojects (pyproject.toml)
-cachetools==5.3.0 \
-    --hash=sha256:13dfddc7b8df938c21a940dfa6557ce6e94a2f1cdfa58eb90c805721d58f2c14 \
-    --hash=sha256:429e1a1e845c008ea6c85aa35d4b98b65d6a9763eeef3e37e92728a12d1de9d4
-    # via tox
 certifi==2022.12.7 \
     --hash=sha256:35824b4c3a97115964b408844d64aa14db1cc518f6562e8d7261699d1350a9e3 \
     --hash=sha256:4ad3232f5e926d6718ec31cfc1fcadfde020920e278684144551c91769c7bc18
@@ -62,9 +45,7 @@ certifi==2022.12.7 \
 chardet==5.1.0 \
     --hash=sha256:0d62712b956bc154f85fb0a266e2a3c5913c2967e00348701b32411d6def31e5 \
     --hash=sha256:362777fb014af596ad31334fde1e8c327dfdb076e1960d1694662d46a6917ab9
-    # via
-    #   binaryornot
-    #   tox
+    # via binaryornot
 charset-normalizer==3.0.1 \
     --hash=sha256:00d3ffdaafe92a5dc603cb9bd5111aaa36dfa187c8285c543be562e61b755f6b \
     --hash=sha256:024e606be3ed92216e2b6952ed859d86b4cfa52cd5bc5f050e7dc28f9b43ec42 \
@@ -168,10 +149,6 @@ codespell==2.2.2 \
     --hash=sha256:87dfcd9bdc9b3cb8b067b37f0af22044d7a84e28174adfc8eaa203056b7f9ecc \
     --hash=sha256:c4d00c02b5a2a55661f00d5b4b3b5a710fa803ced9a9d7e45438268b099c319c
     # via manageprojects (pyproject.toml)
-colorama==0.4.6 \
-    --hash=sha256:08695f5cb7ed6e0531a20572697297273c47b8cae5a63ffc6d6ed5c201be6e44 \
-    --hash=sha256:4f1d9991f5acc0ca119f9d443620b77f9d6b33703e51011c16baf57afb285fc6
-    # via tox
 cookiecutter==2.1.1 \
     --hash=sha256:9f3ab027cec4f70916e28f03470bdb41e637a3ad354b4d65c765d93aad160022 \
     --hash=sha256:f3982be8d9c53dac1261864013fdec7f83afd2e42ede6f6dd069c5e149c540d5
@@ -180,10 +157,6 @@ darker==1.7.0 \
     --hash=sha256:34e259681e931414b3d7bf3467b0af2f29005545cfc72aa4c8739a8705cbf51f \
     --hash=sha256:8d260185295fc672aefe008a300a5164f60c557b7202464c4dd74176325e15b0
     # via manageprojects (pyproject.toml)
-distlib==0.3.6 \
-    --hash=sha256:14bad2d9b04d3a36127ac97f30b12a19268f211063d8f8ee4f47108896e11b46 \
-    --hash=sha256:f35c4b692542ca110de7ef0bea44d73981caeb34ca0b9b6b2e6d7790dda8f80e
-    # via virtualenv
 dparse==0.6.2 \
     --hash=sha256:8097076f1dd26c377f30d4745e6ec18fef42f3bf493933b842ac5bafad8c345f \
     --hash=sha256:d45255bda21f998bc7ddf2afd5e62505ba6134756ba2d42a84c56b0826614dfe
@@ -192,12 +165,6 @@ editorconfig==0.12.3 \
     --hash=sha256:57f8ce78afcba15c8b18d46b5170848c88d56fd38f05c2ec60dbbfcb8996e89e \
     --hash=sha256:6b0851425aa875b08b16789ee0eeadbd4ab59666e9ebe728e526314c4a2e52c1
     # via manageprojects (pyproject.toml)
-filelock==3.9.0 \
-    --hash=sha256:7b319f24340b51f55a2bf7a12ac0755a9b03e718311dac567a0f4f7fabd2f5de \
-    --hash=sha256:f58d535af89bb9ad5cd4df046f741f8553a418c01a7856bf0d173bbc9f6bd16d
-    # via
-    #   tox
-    #   virtualenv
 flake8==6.0.0 \
     --hash=sha256:3833794e27ff64ea4e9cf5d410082a8b97ff1a06c16aa3d2027339cd0f1195c7 \
     --hash=sha256:c61007e76655af75e6785a931f452915b371dc48f56efd765247c8fe68f2b181
@@ -322,16 +289,13 @@ mypy-extensions==1.0.0 \
     # via
     #   black
     #   mypy
-packaging==23.0 \
-    --hash=sha256:714ac14496c3e68c99c29b00845f7a2b85f3bb6f1078fd9f72fd20f0570002b2 \
-    --hash=sha256:b6ad297f8907de0fa2fe1ccbd26fdaf387f5f47c7275fedf8cce89f99446cf97
+packaging==21.3 \
+    --hash=sha256:dd47c42927d89ab911e606518907cc2d3a1f38bbd026385970643f9c5b8ecfeb \
+    --hash=sha256:ef103e05f519cdc783ae24ea4e2e0f508a9c99b2d4969652eed6a2e1ea5bd522
     # via
-    #   black
     #   dparse
     #   manageprojects (pyproject.toml)
-    #   pyproject-api
     #   safety
-    #   tox
 pathspec==0.11.0 \
     --hash=sha256:3a66eb970cbac598f9e5ccb5b2cf58930cd8e3ed86d393d541eaf2d8b1705229 \
     --hash=sha256:64d338d4e0914e91c1792321e6907b5a593f1ab1851de7fc269557a21b30ebbc
@@ -339,14 +303,7 @@ pathspec==0.11.0 \
 platformdirs==3.0.0 \
     --hash=sha256:8a1228abb1ef82d788f74139988b137e78692984ec7b08eaa6c65f1723af28f9 \
     --hash=sha256:b1d5eb14f221506f50d6604a561f4c5786d9e80355219694a1b244bcd96f4567
-    # via
-    #   black
-    #   tox
-    #   virtualenv
-pluggy==1.0.0 \
-    --hash=sha256:4224373bacce55f955a878bf9cfa763c1e360858e330072059e10bad68531159 \
-    --hash=sha256:74134bbf457f031a36d68416e1509f34bd5ccc019f0bcc952c7b909d06b37bd3
-    # via tox
+    # via black
 pycodestyle==2.10.0 \
     --hash=sha256:347187bdb476329d98f695c213d7295a846d1152ff4fe9bacb8a9590b8ee7053 \
     --hash=sha256:8a4eaf0d0495c7395bdab3589ac2db602797d76207242c17d470186815706610
@@ -363,10 +320,10 @@ pygments==2.14.0 \
     --hash=sha256:b3ed06a9e8ac9a9aae5a6f5dbe78a8a58655d17b43b93c078f094ddc476ae297 \
     --hash=sha256:fa7bd7bd2771287c0de303af8bfdfc731f51bd2c6a47ab69d117138893b82717
     # via rich
-pyproject-api==1.5.0 \
-    --hash=sha256:0962df21f3e633b8ddb9567c011e6c1b3dcdfc31b7860c0ede7e24c5a1200fbe \
-    --hash=sha256:4c111277dfb96bcd562c6245428f27250b794bfe3e210b8714c4f893952f2c17
-    # via tox
+pyparsing==3.0.9 \
+    --hash=sha256:2b020ecf7d21b687f219b71ecad3631f644a47f01403fa1d1036b0c6416d70fb \
+    --hash=sha256:5026bae9a10eeaefb61dab2f09052b9f4307d44aee4eda64b309723d8d206bbc
+    # via packaging
 python-dateutil==2.8.2 \
     --hash=sha256:0123cacc1627ae19ddf3c27a5de5bd67ee4586fbdd6440d9748f8abb483d3e86 \
     --hash=sha256:961d03dc3453ebbc59dbdea9e4e11c5651520a876d0f4db161e8674aae935da9
@@ -477,9 +434,9 @@ ruamel-yaml-clib==0.2.7 \
     --hash=sha256:f01da5790e95815eb5a8a138508c01c758e5f5bc0ce4286c4f7028b8dd7ac3d0 \
     --hash=sha256:f34019dced51047d6f70cb9383b2ae2853b7fc4dce65129a5acd49f4f9256646
     # via ruamel-yaml
-safety==2.3.4 \
-    --hash=sha256:6224dcd9b20986a2b2c5e7acfdfba6bca42bb11b2783b24ed04f32317e5167ea \
-    --hash=sha256:b9e74e794e82f54d11f4091c5d820c4d2d81de9f953bf0b4f33ac8bc402ae72c
+safety==2.3.5 \
+    --hash=sha256:2227fcac1b22b53c1615af78872b48348661691450aa25d6704a5504dbd1f7e2 \
+    --hash=sha256:a60c11f8952f412cbb165d70cb1f673a3b43a2ba9a93ce11f97e6a4de834aa3a
     # via manageprojects (pyproject.toml)
 six==1.16.0 \
     --hash=sha256:1e61c37477a1626458e36f7b1d82aa5c9b094fa4802892072e49de9c60c4c926 \
@@ -507,16 +464,10 @@ tomli==2.0.1 \
     #   black
     #   flynt
     #   mypy
-    #   pyproject-api
-    #   tox
 tomlkit==0.11.6 \
     --hash=sha256:07de26b0d8cfc18f871aec595fda24d95b08fef89d147caa861939f37230bf4b \
     --hash=sha256:71b952e5721688937fb02cf9d354dbcf0785066149d2855e44531ebdd2b65d73
     # via manageprojects (pyproject.toml)
-tox==4.4.5 \
-    --hash=sha256:1081864f1a1393ffa11ebe9beaa280349020579310d217a594a4e7b6124c5425 \
-    --hash=sha256:f9bc83c5da8666baa2a4d4e884bbbda124fe646e4b1c0e412949cecc2b6e8f90
-    # via manageprojects (pyproject.toml)
 typing-extensions==4.5.0 \
     --hash=sha256:5cb5f4a79139d699607b3ef622a1dedafa84e115ab0024e0d9c044a9479ca7cb \
     --hash=sha256:fb33085c39dd998ac16d1431ebc293a8b3eedd00fd4a32de0ff79002c19511b4
@@ -525,10 +476,6 @@ urllib3==1.26.14 \
     --hash=sha256:076907bf8fd355cde77728471316625a4d2f7e713c125f51953bb5b3eecf4f72 \
     --hash=sha256:75edcdc2f7d85b137124a6c3c9fc3933cdeaa12ecb9a6a959f22797a0feca7e1
     # via requests
-virtualenv==20.19.0 \
-    --hash=sha256:37a640ba82ed40b226599c522d411e4be5edb339a0c0de030c0dc7b646d61590 \
-    --hash=sha256:54eb59e7352b573aa04d53f80fc9736ed0ad5143af445a1e539aada6eb947dd1
-    # via tox
 
 # The following packages are considered to be unsafe in a requirements file:
 setuptools==67.3.2 \