diff --git a/poetry.lock b/poetry.lock
index 27b2ecdd4..662c07f64 100644
--- a/poetry.lock
+++ b/poetry.lock
@@ -643,7 +643,7 @@ description = "pytest: simple powerful testing with Python"
 name = "pytest"
 optional = false
 python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*"
-version = "4.4.0"
+version = "4.4.1"
 
 [package.dependencies]
 atomicwrites = ">=1.0"
@@ -655,7 +655,7 @@ setuptools = "*"
 six = ">=1.10.0"
 
 [package.dependencies.more-itertools]
-python = ">2.7"
+python = ">=2.8"
 version = ">=4.0.0"
 
 [[package]]
@@ -694,7 +694,7 @@ category = "main"
 description = "YAML parser and emitter for Python"
 name = "pyyaml"
 optional = false
-python-versions = "*"
+python-versions = ">=2.6, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*"
 version = "4.2b4"
 
 [[package]]
@@ -986,7 +986,7 @@ pydocstyle = ["2258f9b0df68b97bf3a6c29003edc5238ff8879f1efb6f1999988d934e432bd8"
 pyflakes = ["17dbeb2e3f4d772725c777fabc446d5634d1038f234e77343108ce445ea69ce0", "d976835886f8c5b31d47970ed689944a0262b5f3afa00a5a7b4dc81e5449f8a2"]
 pygments = ["5ffada19f6203563680669ee7f53b64dabbeb100eb51b61996085e99c03b284a", "e8218dd399a61674745138520d0d4cf2621d7e032439341bc3f647bff125818d"]
 pyparsing = ["1873c03321fc118f4e9746baf201ff990ceb915f433f23b395f5580d1840cb2a", "9b6323ef4ab914af344ba97510e966d64ba91055d6b9afa6b30799340e89cc03"]
-pytest = ["13c5e9fb5ec5179995e9357111ab089af350d788cbc944c628f3cde72285809b", "f21d2f1fb8200830dcbb5d8ec466a9c9120e20d8b53c7585d180125cce1d297a"]
+pytest = ["3773f4c235918987d51daf1db66d51c99fac654c81d6f2f709a046ab446d5e5d", "b7802283b70ca24d7119b32915efa7c409982f59913c1a6c0640aacf118b95f5"]
 pytest-cov = ["0ab664b25c6aa9716cbf203b17ddb301932383046082c081b9848a0edf5add33", "230ef817450ab0699c6cc3c9c8f7a829c34674456f2ed8df1fe1d39780f7c87f"]
 pytest-randomly = ["07b642e177c5921386fa36ee3995a4bda918a1d20b3806a4f397a02788f88331", "f5ac7c6e30a32c1aa5ae911e00b5ffd6a0df38eb818f6b539e1e7b89995724ed"]
 pytz = ["303879e36b721603cc54604edcac9d20401bdbe31e1e4fdee5b9f98d5d31dfda", "d747dd3d23d77ef44c6a3526e274af6efeb0a6f1afd5a69ba4d5be4098c8e141"]