diff --git a/poetry.lock b/poetry.lock
index 9d08f6ebc..bcb314761 100644
--- a/poetry.lock
+++ b/poetry.lock
@@ -63,7 +63,7 @@ description = "Internationalization utilities"
 name = "babel"
 optional = false
 python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*"
-version = "2.7.0"
+version = "2.8.0"
 
 [package.dependencies]
 pytz = ">=2015.7"
@@ -74,7 +74,7 @@ description = "Babel Glade XML files translatable strings extractor"
 name = "babelgladeextractor"
 optional = false
 python-versions = "*"
-version = "0.6.0"
+version = "0.6.3"
 
 [package.dependencies]
 Babel = "*"
@@ -106,7 +106,7 @@ description = "Python package for providing Mozilla's CA Bundle."
 name = "certifi"
 optional = false
 python-versions = "*"
-version = "2019.9.11"
+version = "2019.11.28"
 
 [[package]]
 category = "dev"
@@ -142,8 +142,8 @@ description = "Cross-platform colored terminal text."
 marker = "sys_platform == \"win32\""
 name = "colorama"
 optional = false
-python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*"
-version = "0.4.1"
+python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*, !=3.4.*"
+version = "0.4.3"
 
 [[package]]
 category = "dev"
@@ -161,8 +161,19 @@ category = "dev"
 description = "Code coverage measurement for Python"
 name = "coverage"
 optional = false
-python-versions = ">=2.6, !=3.0.*, !=3.1.*, !=3.2.*, <4"
-version = "4.5.4"
+python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*, !=3.4.*, <4"
+version = "5.0.2"
+
+[package.extras]
+toml = ["toml"]
+
+[[package]]
+category = "dev"
+description = "Python 2.7 backport of the \"dis\" module from Python 3.5+"
+name = "dis3"
+optional = false
+python-versions = "*"
+version = "0.1.3"
 
 [[package]]
 category = "dev"
@@ -228,8 +239,8 @@ category = "dev"
 description = "File identification library for Python"
 name = "identify"
 optional = false
-python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*"
-version = "1.4.7"
+python-versions = "!=3.0.*,!=3.1.*,!=3.2.*,!=3.3.*,>=2.7"
+version = "1.4.9"
 
 [package.extras]
 license = ["editdistance"]
@@ -248,7 +259,7 @@ description = "Getting image size from png/jpeg/jpeg2000/gif file"
 name = "imagesize"
 optional = false
 python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*"
-version = "1.1.0"
+version = "1.2.0"
 
 [[package]]
 category = "main"
@@ -314,8 +325,8 @@ category = "main"
 description = "More routines for operating on iterables, beyond itertools"
 name = "more-itertools"
 optional = false
-python-versions = ">=3.4"
-version = "7.2.0"
+python-versions = ">=3.5"
+version = "8.1.0"
 
 [[package]]
 category = "dev"
@@ -347,7 +358,7 @@ description = "Node.js virtual environment builder"
 name = "nodeenv"
 optional = false
 python-versions = "*"
-version = "1.3.3"
+version = "1.3.4"
 
 [[package]]
 category = "dev"
@@ -355,7 +366,7 @@ description = "Core utilities for Python packages"
 name = "packaging"
 optional = false
 python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*"
-version = "19.2"
+version = "20.0"
 
 [package.dependencies]
 pyparsing = ">=2.0.2"
@@ -367,8 +378,8 @@ description = "Utility library for gitignore style pattern matching of file path
 marker = "python_version >= \"3.6\" and python_version < \"4.0\""
 name = "pathspec"
 optional = false
-python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*"
-version = "0.6.0"
+python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*, !=3.4.*"
+version = "0.7.0"
 
 [[package]]
 category = "dev"
@@ -391,8 +402,8 @@ category = "dev"
 description = "A framework for managing and maintaining multi-language pre-commit hooks."
 name = "pre-commit"
 optional = false
-python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*, !=3.4.*"
-version = "1.20.0"
+python-versions = "!=3.0.*,!=3.1.*,!=3.2.*,!=3.3.*,!=3.4.*,>=2.7"
+version = "1.21.0"
 
 [package.dependencies]
 "aspy.yaml" = "*"
@@ -414,7 +425,7 @@ description = "library with cross-python path, ini-parsing, io, code, log facili
 name = "py"
 optional = false
 python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*"
-version = "1.8.0"
+version = "1.8.1"
 
 [[package]]
 category = "main"
@@ -446,7 +457,7 @@ description = "Pygments is a syntax highlighting package written in Python."
 name = "pygments"
 optional = false
 python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*, !=3.4.*"
-version = "2.4.2"
+version = "2.5.2"
 
 [[package]]
 category = "main"
@@ -464,11 +475,12 @@ category = "dev"
 description = "PyInstaller bundles a Python application and all its dependencies into a single package."
 name = "pyinstaller"
 optional = false
-python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*"
-version = "3.5"
+python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*, !=3.4.*"
+version = "3.6"
 
 [package.dependencies]
 altgraph = "*"
+dis3 = "*"
 setuptools = "*"
 
 [[package]]
@@ -477,7 +489,7 @@ description = "Python parsing module"
 name = "pyparsing"
 optional = false
 python-versions = ">=2.6, !=3.0.*, !=3.1.*, !=3.2.*"
-version = "2.4.5"
+version = "2.4.6"
 
 [[package]]
 category = "dev"
@@ -485,7 +497,7 @@ description = "pytest: simple powerful testing with Python"
 name = "pytest"
 optional = false
 python-versions = ">=3.5"
-version = "5.3.0"
+version = "5.3.2"
 
 [package.dependencies]
 atomicwrites = ">=1.0"
@@ -544,8 +556,8 @@ category = "dev"
 description = "YAML parser and emitter for Python"
 name = "pyyaml"
 optional = false
-python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*"
-version = "5.1.2"
+python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*, !=3.4.*"
+version = "5.3"
 
 [[package]]
 category = "dev"
@@ -567,7 +579,7 @@ marker = "python_version >= \"3.6\" and python_version < \"4.0\""
 name = "regex"
 optional = false
 python-versions = "*"
-version = "2019.11.1"
+version = "2020.1.8"
 
 [[package]]
 category = "dev"
@@ -609,7 +621,7 @@ description = "Python documentation generator"
 name = "sphinx"
 optional = false
 python-versions = ">=3.5"
-version = "2.2.1"
+version = "2.3.1"
 
 [package.dependencies]
 Jinja2 = ">=2.3"
@@ -632,7 +644,7 @@ sphinxcontrib-serializinghtml = "*"
 
 [package.extras]
 docs = ["sphinxcontrib-websupport"]
-test = ["pytest", "pytest-cov", "html5lib", "flake8 (>=3.5.0)", "flake8-import-order", "mypy (>=0.740)", "docutils-stubs"]
+test = ["pytest", "pytest-cov", "html5lib", "flake8 (>=3.5.0)", "flake8-import-order", "mypy (>=0.761)", "docutils-stubs"]
 
 [[package]]
 category = "dev"
@@ -762,7 +774,7 @@ description = "Virtual Python Environment builder"
 name = "virtualenv"
 optional = false
 python-versions = "!=3.0.*,!=3.1.*,!=3.2.*,!=3.3.*,>=2.7"
-version = "16.7.8"
+version = "16.7.9"
 
 [package.extras]
 docs = ["sphinx (>=1.8.0,<2)", "towncrier (>=18.5.0)", "sphinx-rtd-theme (>=0.4.2,<1)"]
@@ -774,7 +786,7 @@ description = "Measures number of Terminal column cells of wide-character codes"
 name = "wcwidth"
 optional = false
 python-versions = "*"
-version = "0.1.7"
+version = "0.1.8"
 
 [[package]]
 category = "main"
@@ -792,7 +804,7 @@ docs = ["sphinx", "jaraco.packaging (>=3.2)", "rst.linker (>=1.9)"]
 testing = ["pathlib2", "contextlib2", "unittest2"]
 
 [metadata]
-content-hash = "6aa6b236150c7e1f496449f5012d2f113296fe18b83927b3d05282bf977ee819"
+content-hash = "d0199411217f0638cc189808970a9733fc040ae893b77d8cc90363359bef9732"
 python-versions = "^3.7"
 
 [metadata.files]
@@ -821,19 +833,19 @@ attrs = [
     {file = "attrs-19.3.0.tar.gz", hash = "sha256:f7b7ce16570fe9965acd6d30101a28f62fb4a7f9e926b3bbc9b61f8b04247e72"},
 ]
 babel = [
-    {file = "Babel-2.7.0-py2.py3-none-any.whl", hash = "sha256:af92e6106cb7c55286b25b38ad7695f8b4efb36a90ba483d7f7a6628c46158ab"},
-    {file = "Babel-2.7.0.tar.gz", hash = "sha256:e86135ae101e31e2c8ec20a4e0c5220f4eed12487d5cf3f78be7e98d3a57fc28"},
+    {file = "Babel-2.8.0-py2.py3-none-any.whl", hash = "sha256:d670ea0b10f8b723672d3a6abeb87b565b244da220d76b4dba1b66269ec152d4"},
+    {file = "Babel-2.8.0.tar.gz", hash = "sha256:1aac2ae2d0d8ea368fa90906567f5c08463d98ade155c0c4bfedd6a0f7160e38"},
 ]
 babelgladeextractor = [
-    {file = "BabelGladeExtractor-0.6.0.tar.bz2", hash = "sha256:464acfdb4b4ec160e7932bcc1d4f398f692ab474df99555734020aa947dca5a2"},
+    {file = "BabelGladeExtractor-0.6.3.tar.bz2", hash = "sha256:58e33cbc074e915d6a4a866159dfccdee9c6dc35320b5160d9bb44c54f8a228a"},
 ]
 black = [
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     {file = "black-19.10b0.tar.gz", hash = "sha256:c2edb73a08e9e0e6f65a0e6af18b059b8b1cdd5bef997d7a0b181df93dc81539"},
 ]
 certifi = [
-    {file = "certifi-2019.9.11-py2.py3-none-any.whl", hash = "sha256:fd7c7c74727ddcf00e9acd26bba8da604ffec95bf1c2144e67aff7a8b50e6cef"},
-    {file = "certifi-2019.9.11.tar.gz", hash = "sha256:e4f3620cfea4f83eedc95b24abd9cd56f3c4b146dd0177e83a21b4eb49e21e50"},
+    {file = "certifi-2019.11.28-py2.py3-none-any.whl", hash = "sha256:017c25db2a153ce562900032d5bc68e9f191e44e9a0f762f373977de9df1fbb3"},
+    {file = "certifi-2019.11.28.tar.gz", hash = "sha256:25b64c7da4cd7479594d035c08c2d809eb4aab3a26e5a990ea98cc450c320f1f"},
 ]
 cfgv = [
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@@ -848,46 +860,50 @@ click = [
     {file = "Click-7.0.tar.gz", hash = "sha256:5b94b49521f6456670fdb30cd82a4eca9412788a93fa6dd6df72c94d5a8ff2d7"},
 ]
 colorama = [
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-    {file = "colorama-0.4.1.tar.gz", hash = "sha256:05eed71e2e327246ad6b38c540c4a3117230b19679b875190486ddd2d721422d"},
+    {file = "colorama-0.4.3-py2.py3-none-any.whl", hash = "sha256:7d73d2a99753107a36ac6b455ee49046802e59d9d076ef8e47b61499fa29afff"},
+    {file = "colorama-0.4.3.tar.gz", hash = "sha256:e96da0d330793e2cb9485e9ddfd918d456036c7149416295932478192f4436a1"},
 ]
 commonmark = [
     {file = "commonmark-0.9.1-py2.py3-none-any.whl", hash = "sha256:da2f38c92590f83de410ba1a3cbceafbc74fee9def35f9251ba9a971d6d66fd9"},
     {file = "commonmark-0.9.1.tar.gz", hash = "sha256:452f9dc859be7f06631ddcb328b6919c67984aca654e5fefb3914d54691aed60"},
 ]
 coverage = [
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-    {file = "regex-2019.11.1.tar.gz", hash = "sha256:720e34a539a76a1fedcebe4397290604cc2bdf6f81eca44adb9fb2ea071c0c69"},
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+    {file = "regex-2020.1.8-cp38-cp38-manylinux1_i686.whl", hash = "sha256:98b8ed7bb2155e2cbb8b76f627b2fd12cf4b22ab6e14873e8641f266e0fb6d8f"},
+    {file = "regex-2020.1.8-cp38-cp38-manylinux1_x86_64.whl", hash = "sha256:6a6ba91b94427cd49cd27764679024b14a96874e0dc638ae6bdd4b1a3ce97be1"},
+    {file = "regex-2020.1.8-cp38-cp38-manylinux2010_i686.whl", hash = "sha256:6a6ae17bf8f2d82d1e8858a47757ce389b880083c4ff2498dba17c56e6c103b9"},
+    {file = "regex-2020.1.8-cp38-cp38-manylinux2010_x86_64.whl", hash = "sha256:0932941cdfb3afcbc26cc3bcf7c3f3d73d5a9b9c56955d432dbf8bbc147d4c5b"},
+    {file = "regex-2020.1.8-cp38-cp38-win32.whl", hash = "sha256:d58e4606da2a41659c84baeb3cfa2e4c87a74cec89a1e7c56bee4b956f9d7461"},
+    {file = "regex-2020.1.8-cp38-cp38-win_amd64.whl", hash = "sha256:e7c7661f7276507bce416eaae22040fd91ca471b5b33c13f8ff21137ed6f248c"},
+    {file = "regex-2020.1.8.tar.gz", hash = "sha256:d0f424328f9822b0323b3b6f2e4b9c90960b24743d220763c7f07071e0778351"},
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 requests = [
     {file = "requests-2.22.0-py2.py3-none-any.whl", hash = "sha256:9cf5292fcd0f598c671cfc1e0d7d1a7f13bb8085e9a590f48c010551dc6c4b31"},
@@ -1105,8 +1128,8 @@ snowballstemmer = [
     {file = "snowballstemmer-2.0.0.tar.gz", hash = "sha256:df3bac3df4c2c01363f3dd2cfa78cce2840a79b9f1c2d2de9ce8d31683992f52"},
 ]
 sphinx = [
-    {file = "Sphinx-2.2.1-py3-none-any.whl", hash = "sha256:52286a0b9d7caa31efee301ec4300dbdab23c3b05da1c9024b4e84896fb73d79"},
-    {file = "Sphinx-2.2.1.tar.gz", hash = "sha256:31088dfb95359384b1005619827eaee3056243798c62724fd3fa4b84ee4d71bd"},
+    {file = "Sphinx-2.3.1-py3-none-any.whl", hash = "sha256:298537cb3234578b2d954ff18c5608468229e116a9757af3b831c2b2b4819159"},
+    {file = "Sphinx-2.3.1.tar.gz", hash = "sha256:e6e766b74f85f37a5f3e0773a1e1be8db3fcb799deb58ca6d18b70b0b44542a5"},
 ]
 sphinx-rtd-theme = [
     {file = "sphinx_rtd_theme-0.4.3-py2.py3-none-any.whl", hash = "sha256:00cf895504a7895ee433807c62094cf1e95f065843bf3acd17037c3e9a2becd4"},
@@ -1177,12 +1200,12 @@ urllib3 = [
     {file = "urllib3-1.25.7.tar.gz", hash = "sha256:f3c5fd51747d450d4dcf6f923c81f78f811aab8205fda64b0aba34a4e48b0745"},
 ]
 virtualenv = [
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-    {file = "virtualenv-16.7.8.tar.gz", hash = "sha256:116655188441670978117d0ebb6451eb6a7526f9ae0796cc0dee6bd7356909b0"},
+    {file = "virtualenv-16.7.9-py2.py3-none-any.whl", hash = "sha256:55059a7a676e4e19498f1aad09b8313a38fcc0cdbe4fdddc0e9b06946d21b4bb"},
+    {file = "virtualenv-16.7.9.tar.gz", hash = "sha256:0d62c70883c0342d59c11d0ddac0d954d0431321a41ab20851facf2b222598f3"},
 ]
 wcwidth = [
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-    {file = "wcwidth-0.1.7.tar.gz", hash = "sha256:3df37372226d6e63e1b1e1eda15c594bca98a22d33a23832a90998faa96bc65e"},
+    {file = "wcwidth-0.1.8-py2.py3-none-any.whl", hash = "sha256:8fd29383f539be45b20bd4df0dc29c20ba48654a41e661925e612311e9f3c603"},
+    {file = "wcwidth-0.1.8.tar.gz", hash = "sha256:f28b3e8a6483e5d49e7f8949ac1a78314e740333ae305b4ba5defd3e74fb37a8"},
 ]
 zipp = [
     {file = "zipp-0.6.0-py2.py3-none-any.whl", hash = "sha256:f06903e9f1f43b12d371004b4ac7b06ab39a44adc747266928ae6debfa7b3335"},
diff --git a/pyproject.toml b/pyproject.toml
index a42db3d22..6375aa988 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -38,7 +38,7 @@ PyGObject = "^3.30"
 gaphas = "^1.0.0"
 importlib_metadata = "^0.23"
 typing_extensions = "^3.7.4"
-generic = {version = "^1.0.0-beta.1", allow-prereleases = true}
+generic = "^1.0.0"
 
 [tool.poetry.dev-dependencies]
 tomlkit = "^0.5"
@@ -97,5 +97,5 @@ skip_glob = "*/uml2.py"
 filter_files = true
 
 [build-system]
-requires = ["poetry==1.0.0b3"]
+requires = ["poetry==1.0.2"]
 build-backend = "poetry.masonry.api"
diff --git a/venv b/venv
index fe539ae19..bce3a97e4 100755
--- a/venv
+++ b/venv
@@ -77,9 +77,6 @@ uname -a | grep -q MSYS_NT && {
 		poetry install
 	}
 
-	# Remove once a new version of pyinstaller is released
-	pip install -U git+https://github.com/pyinstaller/pyinstaller.git@1eadfa55f2ad21539d7773dfb23f27ebd9db26d8
-
 	test_module() {
 		python3 -c "$1" 2>&- || {
 			echo "$2"