diff --git a/poetry.lock b/poetry.lock
index de38145..006ac6c 100644
--- a/poetry.lock
+++ b/poetry.lock
@@ -8,16 +8,15 @@ python-versions = "*"
 
 [[package]]
 name = "astroid"
-version = "2.4.2"
+version = "2.5"
 description = "An abstract syntax tree for Python with inference support."
 category = "dev"
 optional = false
-python-versions = ">=3.5"
+python-versions = ">=3.6"
 
 [package.dependencies]
-lazy-object-proxy = ">=1.4.0,<1.5.0"
-six = ">=1.12,<2.0"
-wrapt = ">=1.11,<2.0"
+lazy-object-proxy = ">=1.4.0"
+wrapt = ">=1.11,<1.13"
 
 [[package]]
 name = "astunparse"
@@ -220,14 +219,6 @@ python-versions = "!=3.0.*,!=3.1.*,!=3.2.*,!=3.3.*,>=2.7"
 [package.extras]
 license = ["editdistance"]
 
-[[package]]
-name = "idna"
-version = "3.1"
-description = "Internationalized Domain Names in Applications (IDNA)"
-category = "dev"
-optional = false
-python-versions = ">=3.4"
-
 [[package]]
 name = "iniconfig"
 version = "1.1.1"
@@ -460,19 +451,22 @@ python-versions = ">=3.5"
 
 [[package]]
 name = "pylint"
-version = "2.6.0"
+version = "2.7.0"
 description = "python code static checker"
 category = "dev"
 optional = false
-python-versions = ">=3.5.*"
+python-versions = "~=3.6"
 
 [package.dependencies]
-astroid = ">=2.4.0,<=2.5"
+astroid = "2.5.0"
 colorama = {version = "*", markers = "sys_platform == \"win32\""}
 isort = ">=4.2.5,<6"
 mccabe = ">=0.6,<0.7"
 toml = ">=0.7.1"
 
+[package.extras]
+docs = ["sphinx (>=3.2,<4.0)", "python-docs-theme"]
+
 [[package]]
 name = "pyparsing"
 version = "2.4.7"
@@ -588,14 +582,6 @@ category = "main"
 optional = false
 python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*"
 
-[[package]]
-name = "smmap"
-version = "4.0.0"
-description = "A pure Python implementation of a sliding window memory map manager"
-category = "dev"
-optional = false
-python-versions = ">=3.5"
-
 [[package]]
 name = "smmap2"
 version = "2.0.5"
@@ -703,7 +689,7 @@ python-versions = "*"
 [metadata]
 lock-version = "1.1"
 python-versions = "^3.8"
-content-hash = "aaee496a20175f0944c8e087640c75120e301937b6f4ab99fae02ba60c04b45d"
+content-hash = "0f5c146af9f583a01c05e30d7ee6af2b975a2b3826fae4fc4d4bd37ae8cc31f5"
 
 [metadata.files]
 appdirs = [
@@ -711,8 +697,8 @@ appdirs = [
     {file = "appdirs-1.4.4.tar.gz", hash = "sha256:7d5d0167b2b1ba821647616af46a749d1c653740dd0d2415100fe26e27afdf41"},
 ]
 astroid = [
-    {file = "astroid-2.4.2-py3-none-any.whl", hash = "sha256:bc58d83eb610252fd8de6363e39d4f1d0619c894b0ed24603b881c02e64c7386"},
-    {file = "astroid-2.4.2.tar.gz", hash = "sha256:2f4078c2a41bf377eea06d71c9d2ba4eb8f6b1af2135bec27bbbb7d8f12bb703"},
+    {file = "astroid-2.5-py3-none-any.whl", hash = "sha256:87ae7f2398b8a0ae5638ddecf9987f081b756e0e9fc071aeebdca525671fc4dc"},
+    {file = "astroid-2.5.tar.gz", hash = "sha256:b31c92f545517dcc452f284bc9c044050862fbe6d93d2b3de4a215a6b384bf0d"},
 ]
 astunparse = [
     {file = "astunparse-1.6.3-py2.py3-none-any.whl", hash = "sha256:c2652417f2c8b5bb325c885ae329bdf3f86424075c4fd1a128674bc6fba4b8e8"},
@@ -821,10 +807,6 @@ identify = [
     {file = "identify-1.5.13-py2.py3-none-any.whl", hash = "sha256:9dfb63a2e871b807e3ba62f029813552a24b5289504f5b071dea9b041aee9fe4"},
     {file = "identify-1.5.13.tar.gz", hash = "sha256:70b638cf4743f33042bebb3b51e25261a0a10e80f978739f17e7fd4837664a66"},
 ]
-idna = [
-    {file = "idna-3.1-py3-none-any.whl", hash = "sha256:5205d03e7bcbb919cc9c19885f9920d622ca52448306f2377daede5cf3faac16"},
-    {file = "idna-3.1.tar.gz", hash = "sha256:c5b02147e01ea9920e6b0a3f1f7bb833612d507592c837a6c49552768f4054e1"},
-]
 iniconfig = [
     {file = "iniconfig-1.1.1-py2.py3-none-any.whl", hash = "sha256:011e24c64b7f47f6ebd835bb12a743f2fbe9a26d4cecaa7f53bc4f35ee9da8b3"},
     {file = "iniconfig-1.1.1.tar.gz", hash = "sha256:bc3af051d7d14b2ee5ef9969666def0cd1a000e121eaea580d4a313df4b37f32"},
@@ -1004,8 +986,8 @@ pygments = [
     {file = "Pygments-2.7.4.tar.gz", hash = "sha256:df49d09b498e83c1a73128295860250b0b7edd4c723a32e9bc0d295c7c2ec337"},
 ]
 pylint = [
-    {file = "pylint-2.6.0-py3-none-any.whl", hash = "sha256:bfe68f020f8a0fece830a22dd4d5dddb4ecc6137db04face4c3420a46a52239f"},
-    {file = "pylint-2.6.0.tar.gz", hash = "sha256:bb4a908c9dadbc3aac18860550e870f58e1a02c9f2c204fdf5693d73be061210"},
+    {file = "pylint-2.7.0-py3-none-any.whl", hash = "sha256:3ea3926700db399765db1faf53860f11e4e981a090646e9eacd01ca78e020579"},
+    {file = "pylint-2.7.0.tar.gz", hash = "sha256:2e0c6749d809985e4f181c336a8f89b2b797340d8049160bf95f35a3f0ecf6fc"},
 ]
 pyparsing = [
     {file = "pyparsing-2.4.7-py2.py3-none-any.whl", hash = "sha256:ef9d7589ef3c200abe66653d3f1ab1033c3c419ae9b9bdb1240a85b024efc88b"},
@@ -1105,10 +1087,6 @@ six = [
     {file = "six-1.15.0-py2.py3-none-any.whl", hash = "sha256:8b74bedcbbbaca38ff6d7491d76f2b06b3592611af620f8426e82dddb04a5ced"},
     {file = "six-1.15.0.tar.gz", hash = "sha256:30639c035cdb23534cd4aa2dd52c3bf48f06e5f4a941509c8bafd8ce11080259"},
 ]
-smmap = [
-    {file = "smmap-4.0.0-py2.py3-none-any.whl", hash = "sha256:a9a7479e4c572e2e775c404dcd3080c8dc49f39918c2cf74913d30c4c478e3c2"},
-    {file = "smmap-4.0.0.tar.gz", hash = "sha256:7e65386bd122d45405ddf795637b7f7d2b532e7e401d46bbe3fb49b9986d5182"},
-]
 smmap2 = [
     {file = "smmap2-2.0.5-py2.py3-none-any.whl", hash = "sha256:0555a7bf4df71d1ef4218e4807bbf9b201f910174e6e08af2e138d4e517b4dde"},
     {file = "smmap2-2.0.5.tar.gz", hash = "sha256:29a9ffa0497e7f2be94ca0ed1ca1aa3cd4cf25a1f6b4f5f87f74b46ed91d609a"},
diff --git a/pyproject.toml b/pyproject.toml
index 0b14747..0e0cc6a 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -47,7 +47,7 @@ mypy = "^0.800"
 bandit = "^1.7.0"
 safety = "^1.10.3"
 pytest = "^6.2.1"
-pylint = "^2.6.0"
+pylint = "^2.7.0"
 pydocstyle = "^5.1.1"
 pre-commit = "^2.10.1"
 pdoc = "^4.0.0"