diff -r 7e59183129bb -r 4e5ee8e79e7f script/pyproject.toml
--- a/script/pyproject.toml	Mon Dec 21 14:03:08 2020 +0100
+++ b/script/pyproject.toml	Tue Jan 12 13:47:11 2021 +0100
@@ -5,17 +5,17 @@
 authors = ["Yves-Marie Haussonne <1218002+ymph@users.noreply.github.com>"]
 
 [tool.poetry.dependencies]
-python = "^3.5"
+python = "^3.9"
 iri_tweet = { path = './lib/iri_tweet' }
 astroid = "^2.2.5"
 blessings = "^1.7"
-certifi = "^2019.6.16"
-chardet = "^3.0.4"
+certifi = "*"
+chardet = "^4.0"
 cssselect = "^1.0.3"
-docutils = "^0.14"
+docutils = "~0.16"
 idna = "^2.8"
-isort = "^4.3.21"
-lazy-object-proxy = "^1.4.1"
+isort = "^5"
+lazy-object-proxy = "^1.4"
 lockfile = "^0.12.2"
 lxml = "^4.3.4"
 mccabe = "^0.6.1"
@@ -33,11 +33,12 @@
 typed-ast = "^1.4.0"
 urllib3 = "^1.25.3"
 wrapt = "^1.11.2"
+poetry = "^1.1.4"
 
 
 [tool.poetry.dev-dependencies]
-fissix = "^19.2b1"
-dephell = {extras = ["full"], version = "^0.7.9"}
+fissix = "^20"
+dephell = {extras = ["full"], version = "^0.8.0"}
 
 [build-system]
 requires = ["poetry>=0.12"]