diff --git a/poetry.lock b/poetry.lock
index 86e238e..c8b0c34 100644
--- a/poetry.lock
+++ b/poetry.lock
@@ -23,7 +23,7 @@ optional = false
 python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*"
 
 [package.extras]
-dev = ["coverage[toml] (>=5.0.2)", "hypothesis", "pympler", "pytest (>=4.3.0)", "six", "zope.interface", "furo", "sphinx", "pre-commit"]
+dev = ["coverage[toml] (>=5.0.2)", "furo", "hypothesis", "pre-commit", "pympler", "pytest (>=4.3.0)", "six", "sphinx", "zope.interface"]
 docs = ["furo", "sphinx", "zope.interface"]
 tests = ["coverage[toml] (>=5.0.2)", "hypothesis", "pympler", "pytest (>=4.3.0)", "six", "zope.interface"]
 tests_no_zope = ["coverage[toml] (>=5.0.2)", "hypothesis", "pympler", "pytest (>=4.3.0)", "six"]
@@ -192,11 +192,11 @@ python-versions = "*"
 
 [[package]]
 name = "typing-extensions"
-version = "3.7.4.3"
-description = "Backported and Experimental Type Hints for Python 3.5+"
+version = "4.4.0"
+description = "Backported and Experimental Type Hints for Python 3.7+"
 category = "dev"
 optional = false
-python-versions = "*"
+python-versions = ">=3.7"
 
 [metadata]
 lock-version = "1.1"
@@ -363,7 +363,6 @@ typed-ast = [
     {file = "typed_ast-1.4.2.tar.gz", hash = "sha256:9fc0b3cb5d1720e7141d103cf4819aea239f7d136acf9ee4a69b047b7986175a"},
 ]
 typing-extensions = [
-    {file = "typing_extensions-3.7.4.3-py2-none-any.whl", hash = "sha256:dafc7639cde7f1b6e1acc0f457842a83e722ccca8eef5270af2d74792619a89f"},
-    {file = "typing_extensions-3.7.4.3-py3-none-any.whl", hash = "sha256:7cb407020f00f7bfc3cb3e7881628838e69d8f3fcab2f64742a5e76b2f841918"},
-    {file = "typing_extensions-3.7.4.3.tar.gz", hash = "sha256:99d4073b617d30288f569d3f13d2bd7548c3a7e4c8de87db09a9d29bb3a4a60c"},
+    {file = "typing_extensions-4.4.0-py3-none-any.whl", hash = "sha256:16fa4864408f655d35ec496218b85f79b3437c829e93320c7c9215ccfd92489e"},
+    {file = "typing_extensions-4.4.0.tar.gz", hash = "sha256:1511434bb92bf8dd198c12b1cc812e800d4181cfcb867674e0f8279cc93087aa"},
 ]