diff --git a/poetry.lock b/poetry.lock
index f763c13..7653fdc 100644
--- a/poetry.lock
+++ b/poetry.lock
@@ -166,18 +166,19 @@ testing = ["argcomplete", "hypothesis (>=3.56)", "mock", "nose", "requests", "xm
 
 [[package]]
 name = "pytest-cov"
-version = "2.10.1"
+version = "2.12.1"
 description = "Pytest plugin for measuring coverage."
 category = "dev"
 optional = false
 python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*, !=3.4.*"
 
 [package.dependencies]
-coverage = ">=4.4"
+coverage = ">=5.2.1"
 pytest = ">=4.6"
+toml = "*"
 
 [package.extras]
-testing = ["fields", "hunter", "process-tests (==2.0.2)", "six", "pytest-xdist", "virtualenv"]
+testing = ["fields", "hunter", "process-tests", "six", "pytest-xdist", "virtualenv"]
 
 [[package]]
 name = "pytest-mypy"
@@ -282,7 +283,7 @@ python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*"
 [metadata]
 lock-version = "1.1"
 python-versions = "^3.8"
-content-hash = "2b7465fcbbcef2ab209738131a9eef78bc36dd0a053df45e6cec91db0fa2bb5f"
+content-hash = "026eba43ec2a789b3a4e71519787aa4d43661e0e03d4a731bd245cd2a541acfe"
 
 [metadata.files]
 atomicwrites = [
@@ -394,8 +395,8 @@ pytest = [
     {file = "pytest-6.1.2.tar.gz", hash = "sha256:c0a7e94a8cdbc5422a51ccdad8e6f1024795939cc89159a0ae7f0b316ad3823e"},
 ]
 pytest-cov = [
-    {file = "pytest-cov-2.10.1.tar.gz", hash = "sha256:47bd0ce14056fdd79f93e1713f88fad7bdcc583dcd7783da86ef2f085a0bb88e"},
-    {file = "pytest_cov-2.10.1-py2.py3-none-any.whl", hash = "sha256:45ec2d5182f89a81fc3eb29e3d1ed3113b9e9a873bcddb2a71faaab066110191"},
+    {file = "pytest-cov-2.12.1.tar.gz", hash = "sha256:261ceeb8c227b726249b376b8526b600f38667ee314f910353fa318caa01f4d7"},
+    {file = "pytest_cov-2.12.1-py2.py3-none-any.whl", hash = "sha256:261bb9e47e65bd099c89c3edf92972865210c36813f80ede5277dceb77a4a62a"},
 ]
 pytest-mypy = [
     {file = "pytest-mypy-0.7.0.tar.gz", hash = "sha256:5a667d9a2b66bf98b3a494411f221923a6e2c3eafbe771104951aaec8985673d"},
diff --git a/pyproject.toml b/pyproject.toml
index e17e6e7..a0948f0 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -18,7 +18,7 @@ xmltodict = "^0.12.0"
 [tool.poetry.dev-dependencies]
 requests-mock = "^1.9.2"
 pytest = "^6.1.2"
-pytest-cov = "^2.10.1"
+pytest-cov = "^2.12.1"
 pytest-mypy = "^0.7.0"
 
 [build-system]