diff --git a/nixops_gcp/resources/gce_static_ip.py b/nixops_gcp/resources/gce_static_ip.py
index 0ee14a8..1a44deb 100644
--- a/nixops_gcp/resources/gce_static_ip.py
+++ b/nixops_gcp/resources/gce_static_ip.py
@@ -27,7 +27,7 @@ def __init__(self, name, config):
         super().__init__(name, config)
         self.addr_name = self.config.name
         self.region = self.config.region
-        self.config.ip_address = self.config.ipAddress
+        self.ip_address = self.config.ipAddress
 
     def show_type(self):
         return "{0} [{1}]".format(self.get_type(), self.region)
diff --git a/poetry.lock b/poetry.lock
index c561def..4aec610 100644
--- a/poetry.lock
+++ b/poetry.lock
@@ -1,43 +1,43 @@
 [[package]]
-category = "main"
-description = "A standard Python library that abstracts away differences among multiple cloud provider APIs. For more information and documentation, please see https://libcloud.apache.org"
 name = "apache-libcloud"
+version = "3.3.1"
+description = "A standard Python library that abstracts away differences among multiple cloud provider APIs. For more information and documentation, please see https://libcloud.apache.org"
+category = "main"
 optional = false
 python-versions = ">=3.5.*, <4"
-version = "3.3.1"
 
 [package.dependencies]
 requests = ">=2.5.0"
 
 [[package]]
-category = "dev"
-description = "A small Python module for determining appropriate platform-specific dirs, e.g. a \"user data dir\"."
 name = "appdirs"
+version = "1.4.4"
+description = "A small Python module for determining appropriate platform-specific dirs, e.g. a \"user data dir\"."
+category = "dev"
 optional = false
 python-versions = "*"
-version = "1.4.4"
 
 [[package]]
-category = "dev"
-description = "Classes Without Boilerplate"
 name = "attrs"
+version = "21.2.0"
+description = "Classes Without Boilerplate"
+category = "dev"
 optional = false
-python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*"
-version = "20.3.0"
+python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*, !=3.4.*"
 
 [package.extras]
-dev = ["coverage (>=5.0.2)", "hypothesis", "pympler", "pytest (>=4.3.0)", "six", "zope.interface", "furo", "sphinx", "pre-commit"]
-docs = ["furo", "sphinx", "zope.interface"]
-tests = ["coverage (>=5.0.2)", "hypothesis", "pympler", "pytest (>=4.3.0)", "six", "zope.interface"]
-tests_no_zope = ["coverage (>=5.0.2)", "hypothesis", "pympler", "pytest (>=4.3.0)", "six"]
+dev = ["coverage[toml] (>=5.0.2)", "hypothesis", "pympler", "pytest (>=4.3.0)", "six", "mypy", "pytest-mypy-plugins", "zope.interface", "furo", "sphinx", "sphinx-notfound-page", "pre-commit"]
+docs = ["furo", "sphinx", "zope.interface", "sphinx-notfound-page"]
+tests = ["coverage[toml] (>=5.0.2)", "hypothesis", "pympler", "pytest (>=4.3.0)", "six", "mypy", "pytest-mypy-plugins", "zope.interface"]
+tests_no_zope = ["coverage[toml] (>=5.0.2)", "hypothesis", "pympler", "pytest (>=4.3.0)", "six", "mypy", "pytest-mypy-plugins"]
 
 [[package]]
-category = "dev"
-description = "The uncompromising code formatter."
 name = "black"
+version = "19.10b0"
+description = "The uncompromising code formatter."
+category = "dev"
 optional = false
 python-versions = ">=3.6"
-version = "19.10b0"
 
 [package.dependencies]
 appdirs = "*"
@@ -52,94 +52,106 @@ typed-ast = ">=1.4.0"
 d = ["aiohttp (>=3.3.2)", "aiohttp-cors"]
 
 [[package]]
-category = "main"
-description = "Python package for providing Mozilla's CA Bundle."
 name = "certifi"
+version = "2021.5.30"
+description = "Python package for providing Mozilla's CA Bundle."
+category = "main"
 optional = false
 python-versions = "*"
-version = "2020.12.5"
 
 [[package]]
-category = "main"
-description = "Foreign Function Interface for Python calling C code."
 name = "cffi"
+version = "1.14.6"
+description = "Foreign Function Interface for Python calling C code."
+category = "main"
 optional = false
 python-versions = "*"
-version = "1.14.5"
 
 [package.dependencies]
 pycparser = "*"
 
 [[package]]
+name = "charset-normalizer"
+version = "2.0.4"
+description = "The Real First Universal Charset Detector. Open, modern and actively maintained alternative to Chardet."
 category = "main"
-description = "Universal encoding detector for Python 2 and 3"
-name = "chardet"
 optional = false
-python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*, !=3.4.*"
-version = "4.0.0"
+python-versions = ">=3.5.0"
+
+[package.extras]
+unicode_backport = ["unicodedata2"]
 
 [[package]]
-category = "dev"
-description = "Composable command line interface toolkit"
 name = "click"
+version = "8.0.1"
+description = "Composable command line interface toolkit"
+category = "dev"
+optional = false
+python-versions = ">=3.6"
+
+[package.dependencies]
+colorama = {version = "*", markers = "platform_system == \"Windows\""}
+importlib-metadata = {version = "*", markers = "python_version < \"3.8\""}
+
+[[package]]
+name = "colorama"
+version = "0.4.4"
+description = "Cross-platform colored terminal text."
+category = "dev"
 optional = false
 python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*, !=3.4.*"
-version = "7.1.2"
 
 [[package]]
-category = "main"
-description = "cryptography is a package which provides cryptographic recipes and primitives to Python developers."
 name = "cryptography"
+version = "3.4.7"
+description = "cryptography is a package which provides cryptographic recipes and primitives to Python developers."
+category = "main"
 optional = false
 python-versions = ">=3.6"
-version = "3.4.6"
 
 [package.dependencies]
 cffi = ">=1.12"
 
 [package.extras]
-docs = ["sphinx (>=1.6.5,<1.8.0 || >1.8.0,<3.1.0 || >3.1.0,<3.1.1 || >3.1.1)", "sphinx-rtd-theme"]
+docs = ["sphinx (>=1.6.5,!=1.8.0,!=3.1.0,!=3.1.1)", "sphinx-rtd-theme"]
 docstest = ["doc8", "pyenchant (>=1.6.11)", "twine (>=1.12.0)", "sphinxcontrib-spelling (>=4.0.1)"]
 pep8test = ["black", "flake8", "flake8-import-order", "pep8-naming"]
 sdist = ["setuptools-rust (>=0.11.4)"]
 ssh = ["bcrypt (>=3.1.5)"]
-test = ["pytest (>=6.0)", "pytest-cov", "pytest-subtests", "pytest-xdist", "pretend", "iso8601", "pytz", "hypothesis (>=1.11.4,<3.79.2 || >3.79.2)"]
+test = ["pytest (>=6.0)", "pytest-cov", "pytest-subtests", "pytest-xdist", "pretend", "iso8601", "pytz", "hypothesis (>=1.11.4,!=3.79.2)"]
 
 [[package]]
-category = "main"
-description = "Internationalized Domain Names in Applications (IDNA)"
 name = "idna"
+version = "3.2"
+description = "Internationalized Domain Names in Applications (IDNA)"
+category = "main"
 optional = false
-python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*"
-version = "2.10"
+python-versions = ">=3.5"
 
 [[package]]
-category = "main"
-description = "Read metadata from Python packages"
-marker = "python_version < \"3.8\""
 name = "importlib-metadata"
+version = "4.6.4"
+description = "Read metadata from Python packages"
+category = "main"
 optional = false
 python-versions = ">=3.6"
-version = "3.7.3"
 
 [package.dependencies]
+typing-extensions = {version = ">=3.6.4", markers = "python_version < \"3.8\""}
 zipp = ">=0.5"
 
-[package.dependencies.typing-extensions]
-python = "<3.8"
-version = ">=3.6.4"
-
 [package.extras]
 docs = ["sphinx", "jaraco.packaging (>=8.2)", "rst.linker (>=1.9)"]
-testing = ["pytest (>=3.5,<3.7.3 || >3.7.3)", "pytest-checkdocs (>=1.2.3)", "pytest-flake8", "pytest-cov", "pytest-enabler", "packaging", "pep517", "pyfakefs", "flufl.flake8", "pytest-black (>=0.3.7)", "pytest-mypy", "importlib-resources (>=1.3)"]
+perf = ["ipython"]
+testing = ["pytest (>=4.6)", "pytest-checkdocs (>=2.4)", "pytest-flake8", "pytest-cov", "pytest-enabler (>=1.0.1)", "packaging", "pep517", "pyfakefs", "flufl.flake8", "pytest-perf (>=0.9.2)", "pytest-black (>=0.3.7)", "pytest-mypy", "importlib-resources (>=1.3)"]
 
 [[package]]
-category = "dev"
-description = "Optional static typing for Python"
 name = "mypy"
+version = "0.812"
+description = "Optional static typing for Python"
+category = "dev"
 optional = false
 python-versions = ">=3.5"
-version = "0.770"
 
 [package.dependencies]
 mypy-extensions = ">=0.4.3,<0.5.0"
@@ -150,186 +162,189 @@ typing-extensions = ">=3.7.4"
 dmypy = ["psutil (>=4.0)"]
 
 [[package]]
-category = "dev"
-description = "Experimental type system extensions for programs checked with the mypy typechecker."
 name = "mypy-extensions"
+version = "0.4.3"
+description = "Experimental type system extensions for programs checked with the mypy typechecker."
+category = "dev"
 optional = false
 python-versions = "*"
-version = "0.4.3"
 
 [[package]]
-category = "main"
-description = ""
 name = "nixops"
+version = "2.0.0"
+description = "NixOS cloud provisioning and deployment tool"
+category = "main"
 optional = false
 python-versions = "^3.7"
-version = "2.0.0"
+develop = false
 
 [package.dependencies]
-PrettyTable = "^0.7.2"
 pluggy = "^0.13.1"
+PrettyTable = "^0.7.2"
 typeguard = "^2.7.1"
 typing-extensions = "^3.7.4"
 
 [package.source]
-reference = "45256745cef246dabe1ae8a7d109988f190cd7ef"
 type = "git"
 url = "https://github.com/NixOS/nixops.git"
+reference = "master"
+resolved_reference = "35ac02085169bc2372834d6be6cf4c1bdf820d09"
+
 [[package]]
-category = "main"
-description = ""
 name = "nixos-modules-contrib"
+version = "0.1.0"
+description = "NixOS modules that don't quite belong in NixOS."
+category = "main"
 optional = false
 python-versions = "^3.7"
-version = "0.1.0"
+develop = false
 
 [package.dependencies]
 nixops = "rev master"
 
 [package.source]
-reference = "81a1c2ef424dcf596a97b2e46a58ca73a1dd1ff8"
 type = "git"
 url = "https://github.com/nix-community/nixos-modules-contrib.git"
+reference = "master"
+resolved_reference = "81a1c2ef424dcf596a97b2e46a58ca73a1dd1ff8"
+
 [[package]]
-category = "dev"
-description = "nose extends unittest to make testing easier"
 name = "nose"
+version = "1.3.7"
+description = "nose extends unittest to make testing easier"
+category = "dev"
 optional = false
 python-versions = "*"
-version = "1.3.7"
 
 [[package]]
-category = "dev"
-description = "Utility library for gitignore style pattern matching of file paths."
 name = "pathspec"
+version = "0.9.0"
+description = "Utility library for gitignore style pattern matching of file paths."
+category = "dev"
 optional = false
-python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*, !=3.4.*"
-version = "0.8.1"
+python-versions = "!=3.0.*,!=3.1.*,!=3.2.*,!=3.3.*,!=3.4.*,>=2.7"
 
 [[package]]
-category = "main"
-description = "plugin and hook calling mechanisms for python"
 name = "pluggy"
+version = "0.13.1"
+description = "plugin and hook calling mechanisms for python"
+category = "main"
 optional = false
 python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*"
-version = "0.13.1"
 
 [package.dependencies]
-[package.dependencies.importlib-metadata]
-python = "<3.8"
-version = ">=0.12"
+importlib-metadata = {version = ">=0.12", markers = "python_version < \"3.8\""}
 
 [package.extras]
 dev = ["pre-commit", "tox"]
 
 [[package]]
-category = "main"
-description = "A simple Python library for easily displaying tabular data in a visually appealing ASCII table format."
 name = "prettytable"
+version = "0.7.2"
+description = "A simple Python library for easily displaying tabular data in a visually appealing ASCII table format."
+category = "main"
 optional = false
 python-versions = "*"
-version = "0.7.2"
 
 [[package]]
-category = "main"
-description = "C parser in Python"
 name = "pycparser"
+version = "2.20"
+description = "C parser in Python"
+category = "main"
 optional = false
 python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*"
-version = "2.20"
 
 [[package]]
-category = "dev"
-description = "Alternative regular expression module, to replace re."
 name = "regex"
+version = "2021.8.3"
+description = "Alternative regular expression module, to replace re."
+category = "dev"
 optional = false
 python-versions = "*"
-version = "2021.3.17"
 
 [[package]]
-category = "main"
-description = "Python HTTP for Humans."
 name = "requests"
+version = "2.26.0"
+description = "Python HTTP for Humans."
+category = "main"
 optional = false
-python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*, !=3.4.*"
-version = "2.25.1"
+python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*, !=3.4.*, !=3.5.*"
 
 [package.dependencies]
 certifi = ">=2017.4.17"
-chardet = ">=3.0.2,<5"
-idna = ">=2.5,<3"
+charset-normalizer = {version = ">=2.0.0,<2.1.0", markers = "python_version >= \"3\""}
+idna = {version = ">=2.5,<4", markers = "python_version >= \"3\""}
 urllib3 = ">=1.21.1,<1.27"
 
 [package.extras]
-security = ["pyOpenSSL (>=0.14)", "cryptography (>=1.3.4)"]
-socks = ["PySocks (>=1.5.6,<1.5.7 || >1.5.7)", "win-inet-pton"]
+socks = ["PySocks (>=1.5.6,!=1.5.7)", "win-inet-pton"]
+use_chardet_on_py3 = ["chardet (>=3.0.2,<5)"]
 
 [[package]]
-category = "dev"
-description = "Python Library for Tom's Obvious, Minimal Language"
 name = "toml"
+version = "0.10.2"
+description = "Python Library for Tom's Obvious, Minimal Language"
+category = "dev"
 optional = false
 python-versions = ">=2.6, !=3.0.*, !=3.1.*, !=3.2.*"
-version = "0.10.2"
 
 [[package]]
-category = "dev"
-description = "a fork of Python 2 and 3 ast modules with type comment support"
 name = "typed-ast"
+version = "1.4.3"
+description = "a fork of Python 2 and 3 ast modules with type comment support"
+category = "dev"
 optional = false
 python-versions = "*"
-version = "1.4.2"
 
 [[package]]
-category = "main"
-description = "Run-time type checker for Python"
 name = "typeguard"
+version = "2.12.1"
+description = "Run-time type checker for Python"
+category = "main"
 optional = false
 python-versions = ">=3.5.3"
-version = "2.11.1"
 
 [package.extras]
 doc = ["sphinx-rtd-theme", "sphinx-autodoc-typehints (>=1.2.0)"]
 test = ["pytest", "typing-extensions", "mypy"]
 
 [[package]]
-category = "main"
-description = "Backported and Experimental Type Hints for Python 3.5+"
 name = "typing-extensions"
+version = "3.10.0.0"
+description = "Backported and Experimental Type Hints for Python 3.5+"
+category = "main"
 optional = false
 python-versions = "*"
-version = "3.7.4.3"
 
 [[package]]
-category = "main"
-description = "HTTP library with thread-safe connection pooling, file post, and more."
 name = "urllib3"
+version = "1.26.6"
+description = "HTTP library with thread-safe connection pooling, file post, and more."
+category = "main"
 optional = false
 python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*, !=3.4.*, <4"
-version = "1.26.4"
 
 [package.extras]
 brotli = ["brotlipy (>=0.6.0)"]
 secure = ["pyOpenSSL (>=0.14)", "cryptography (>=1.3.4)", "idna (>=2.0.0)", "certifi", "ipaddress"]
-socks = ["PySocks (>=1.5.6,<1.5.7 || >1.5.7,<2.0)"]
+socks = ["PySocks (>=1.5.6,!=1.5.7,<2.0)"]
 
 [[package]]
-category = "main"
-description = "Backport of pathlib-compatible object wrapper for zip files"
-marker = "python_version < \"3.8\""
 name = "zipp"
+version = "3.5.0"
+description = "Backport of pathlib-compatible object wrapper for zip files"
+category = "main"
 optional = false
 python-versions = ">=3.6"
-version = "3.4.1"
 
 [package.extras]
 docs = ["sphinx", "jaraco.packaging (>=8.2)", "rst.linker (>=1.9)"]
-testing = ["pytest (>=4.6)", "pytest-checkdocs (>=1.2.3)", "pytest-flake8", "pytest-cov", "pytest-enabler", "jaraco.itertools", "func-timeout", "pytest-black (>=0.3.7)", "pytest-mypy"]
+testing = ["pytest (>=4.6)", "pytest-checkdocs (>=2.4)", "pytest-flake8", "pytest-cov", "pytest-enabler (>=1.0.1)", "jaraco.itertools", "func-timeout", "pytest-black (>=0.3.7)", "pytest-mypy"]
 
 [metadata]
-content-hash = "10f4628c8f35a8d8d8938eac8d0c1f58a698d10ce93fdeca005cf51bca9376f3"
-lock-version = "1.0"
+lock-version = "1.1"
 python-versions = "^3.7"
+content-hash = "151b0cda1cdf266a020b4bb9f6bcffdd1062adc82ca6ca4125d5106008cca5bc"
 
 [metadata.files]
 apache-libcloud = [
@@ -341,101 +356,123 @@ appdirs = [
     {file = "appdirs-1.4.4.tar.gz", hash = "sha256:7d5d0167b2b1ba821647616af46a749d1c653740dd0d2415100fe26e27afdf41"},
 ]
 attrs = [
-    {file = "attrs-20.3.0-py2.py3-none-any.whl", hash = "sha256:31b2eced602aa8423c2aea9c76a724617ed67cf9513173fd3a4f03e3a929c7e6"},
-    {file = "attrs-20.3.0.tar.gz", hash = "sha256:832aa3cde19744e49938b91fea06d69ecb9e649c93ba974535d08ad92164f700"},
+    {file = "attrs-21.2.0-py2.py3-none-any.whl", hash = "sha256:149e90d6d8ac20db7a955ad60cf0e6881a3f20d37096140088356da6c716b0b1"},
+    {file = "attrs-21.2.0.tar.gz", hash = "sha256:ef6aaac3ca6cd92904cdd0d83f629a15f18053ec84e6432106f7a4d04ae4f5fb"},
 ]
 black = [
     {file = "black-19.10b0-py36-none-any.whl", hash = "sha256:1b30e59be925fafc1ee4565e5e08abef6b03fe455102883820fe5ee2e4734e0b"},
     {file = "black-19.10b0.tar.gz", hash = "sha256:c2edb73a08e9e0e6f65a0e6af18b059b8b1cdd5bef997d7a0b181df93dc81539"},
 ]
 certifi = [
-    {file = "certifi-2020.12.5-py2.py3-none-any.whl", hash = "sha256:719a74fb9e33b9bd44cc7f3a8d94bc35e4049deebe19ba7d8e108280cfd59830"},
-    {file = "certifi-2020.12.5.tar.gz", hash = "sha256:1a4995114262bffbc2413b159f2a1a480c969de6e6eb13ee966d470af86af59c"},
+    {file = "certifi-2021.5.30-py2.py3-none-any.whl", hash = "sha256:50b1e4f8446b06f41be7dd6338db18e0990601dce795c2b1686458aa7e8fa7d8"},
+    {file = "certifi-2021.5.30.tar.gz", hash = "sha256:2bbf76fd432960138b3ef6dda3dde0544f27cbf8546c458e60baf371917ba9ee"},
 ]
 cffi = [
-    {file = "cffi-1.14.5-cp27-cp27m-macosx_10_9_x86_64.whl", hash = "sha256:bb89f306e5da99f4d922728ddcd6f7fcebb3241fc40edebcb7284d7514741991"},
-    {file = "cffi-1.14.5-cp27-cp27m-manylinux1_i686.whl", hash = "sha256:34eff4b97f3d982fb93e2831e6750127d1355a923ebaeeb565407b3d2f8d41a1"},
-    {file = "cffi-1.14.5-cp27-cp27m-manylinux1_x86_64.whl", hash = "sha256:99cd03ae7988a93dd00bcd9d0b75e1f6c426063d6f03d2f90b89e29b25b82dfa"},
-    {file = "cffi-1.14.5-cp27-cp27m-win32.whl", hash = "sha256:65fa59693c62cf06e45ddbb822165394a288edce9e276647f0046e1ec26920f3"},
-    {file = "cffi-1.14.5-cp27-cp27m-win_amd64.whl", hash = "sha256:51182f8927c5af975fece87b1b369f722c570fe169f9880764b1ee3bca8347b5"},
-    {file = "cffi-1.14.5-cp27-cp27mu-manylinux1_i686.whl", hash = "sha256:43e0b9d9e2c9e5d152946b9c5fe062c151614b262fda2e7b201204de0b99e482"},
-    {file = "cffi-1.14.5-cp27-cp27mu-manylinux1_x86_64.whl", hash = "sha256:cbde590d4faaa07c72bf979734738f328d239913ba3e043b1e98fe9a39f8b2b6"},
-    {file = "cffi-1.14.5-cp35-cp35m-macosx_10_9_x86_64.whl", hash = "sha256:5de7970188bb46b7bf9858eb6890aad302577a5f6f75091fd7cdd3ef13ef3045"},
-    {file = "cffi-1.14.5-cp35-cp35m-manylinux1_i686.whl", hash = "sha256:a465da611f6fa124963b91bf432d960a555563efe4ed1cc403ba5077b15370aa"},
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+    {file = "typed_ast-1.4.3-cp39-cp39-macosx_10_9_x86_64.whl", hash = "sha256:f328adcfebed9f11301eaedfa48e15bdece9b519fb27e6a8c01aa52a17ec31b3"},
+    {file = "typed_ast-1.4.3-cp39-cp39-manylinux1_i686.whl", hash = "sha256:2c726c276d09fc5c414693a2de063f521052d9ea7c240ce553316f70656c84d4"},
+    {file = "typed_ast-1.4.3-cp39-cp39-manylinux1_x86_64.whl", hash = "sha256:cae53c389825d3b46fb37538441f75d6aecc4174f615d048321b716df2757fb0"},
+    {file = "typed_ast-1.4.3-cp39-cp39-manylinux2014_aarch64.whl", hash = "sha256:b9574c6f03f685070d859e75c7f9eeca02d6933273b5e69572e5ff9d5e3931c3"},
+    {file = "typed_ast-1.4.3-cp39-cp39-win32.whl", hash = "sha256:209596a4ec71d990d71d5e0d312ac935d86930e6eecff6ccc7007fe54d703808"},
+    {file = "typed_ast-1.4.3-cp39-cp39-win_amd64.whl", hash = "sha256:9c6d1a54552b5330bc657b7ef0eae25d00ba7ffe85d9ea8ae6540d2197a3788c"},
+    {file = "typed_ast-1.4.3.tar.gz", hash = "sha256:fb1bbeac803adea29cedd70781399c99138358c26d05fcbd23c13016b7f5ec65"},
 ]
 typeguard = [
-    {file = "typeguard-2.11.1-py3-none-any.whl", hash = "sha256:c62706201ec6c14962162fa67d70bd2762753247533d70ff2442e5ac08f94fa2"},
-    {file = "typeguard-2.11.1.tar.gz", hash = "sha256:33243c1cbfcb9736a06c6db22dd08876b5f297e6344aa272a2862c0f8e669f64"},
+    {file = "typeguard-2.12.1-py3-none-any.whl", hash = "sha256:cc15ef2704c9909ef9c80e19c62fb8468c01f75aad12f651922acf4dbe822e02"},
+    {file = "typeguard-2.12.1.tar.gz", hash = "sha256:c2af8b9bdd7657f4bd27b45336e7930171aead796711bc4cfc99b4731bb9d051"},
 ]
 typing-extensions = [
-    {file = "typing_extensions-3.7.4.3-py2-none-any.whl", hash = "sha256:dafc7639cde7f1b6e1acc0f457842a83e722ccca8eef5270af2d74792619a89f"},
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-    {file = "typing_extensions-3.7.4.3.tar.gz", hash = "sha256:99d4073b617d30288f569d3f13d2bd7548c3a7e4c8de87db09a9d29bb3a4a60c"},
+    {file = "typing_extensions-3.10.0.0-py2-none-any.whl", hash = "sha256:0ac0f89795dd19de6b97debb0c6af1c70987fd80a2d62d1958f7e56fcc31b497"},
+    {file = "typing_extensions-3.10.0.0-py3-none-any.whl", hash = "sha256:779383f6086d90c99ae41cf0ff39aac8a7937a9283ce0a414e5dd782f4c94a84"},
+    {file = "typing_extensions-3.10.0.0.tar.gz", hash = "sha256:50b6f157849174217d0656f99dc82fe932884fb250826c18350e159ec6cdf342"},
 ]
 urllib3 = [
-    {file = "urllib3-1.26.4-py2.py3-none-any.whl", hash = "sha256:2f4da4594db7e1e110a944bb1b551fdf4e6c136ad42e4234131391e21eb5b0df"},
-    {file = "urllib3-1.26.4.tar.gz", hash = "sha256:e7b021f7241115872f92f43c6508082facffbd1c048e3c6e2bb9c2a157e28937"},
+    {file = "urllib3-1.26.6-py2.py3-none-any.whl", hash = "sha256:39fb8672126159acb139a7718dd10806104dec1e2f0f6c88aab05d17df10c8d4"},
+    {file = "urllib3-1.26.6.tar.gz", hash = "sha256:f57b4c16c62fa2760b7e3d97c35b255512fb6b59a259730f36ba32ce9f8e342f"},
 ]
 zipp = [
-    {file = "zipp-3.4.1-py3-none-any.whl", hash = "sha256:51cb66cc54621609dd593d1787f286ee42a5c0adbb4b29abea5a63edc3e03098"},
-    {file = "zipp-3.4.1.tar.gz", hash = "sha256:3607921face881ba3e026887d8150cca609d517579abe052ac81fc5aeffdbd76"},
+    {file = "zipp-3.5.0-py3-none-any.whl", hash = "sha256:957cfda87797e389580cb8b9e3870841ca991e2125350677b2ca83a0e99390a3"},
+    {file = "zipp-3.5.0.tar.gz", hash = "sha256:f5812b1e007e48cff63449a5e9f4e7ebea716b4111f9c4f9a645f91d579bf0c4"},
 ]
diff --git a/pyproject.toml b/pyproject.toml
index 54d56fb..ef05853 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -16,7 +16,7 @@ nixos-modules-contrib = {git = "https://github.com/nix-community/nixos-modules-c
 
 [tool.poetry.dev-dependencies]
 nose = "^1.3.7"
-mypy = "^0.770"
+mypy = "^0.812"
 black = "^19.10b0"
 
 [tool.poetry.plugins."nixops"]
diff --git a/tests/functional/single_machine_static_ip_gce.nix b/tests/functional/single_machine_static_ip_gce.nix
new file mode 100644
index 0000000..6f15b2e
--- /dev/null
+++ b/tests/functional/single_machine_static_ip_gce.nix
@@ -0,0 +1,26 @@
+let
+  region = "europe-west1-b";
+in
+{
+  machine =
+    { resources, ... }:
+    {
+      deployment.targetEnv = "gce";
+      deployment.gce = {
+        inherit region;
+        instanceType = "g1-small";
+        rootDiskSize = 5;
+        tags = [ "test" "instance" ];
+        metadata.random = "mess";
+      };
+    };
+
+  ip =
+    { resources, ... }:
+    {
+      resources.gceStaticIPs.endpointIP = credentials // {
+        region = region;
+        name = "endpoint-ip";
+      };
+    };
+}