diff --git a/poetry.lock b/poetry.lock
index 0bd4840..3a2d7d8 100644
--- a/poetry.lock
+++ b/poetry.lock
@@ -157,7 +157,7 @@ description = "A Python utility / library to sort Python imports."
 name = "isort"
 optional = false
 python-versions = ">=3.6,<4.0"
-version = "5.3.0"
+version = "5.4.0"
 
 [package.extras]
 colors = ["colorama (>=0.4.3,<0.5.0)"]
@@ -314,7 +314,7 @@ docs = ["sphinx", "jaraco.packaging (>=3.2)", "rst.linker (>=1.9)"]
 testing = ["jaraco.itertools", "func-timeout"]
 
 [metadata]
-content-hash = "dd44d8a67a43469311918dad28880bac3e3eedc5f1ec095810f7e5eb6b3796a0"
+content-hash = "6bb7a21c65dcecd3cc99c3c2db560ae5492f9f5356ef4c683b58db41a1cea5fc"
 python-versions = "^3.6"
 
 [metadata.files]
@@ -398,8 +398,8 @@ importlib-metadata = [
     {file = "importlib_metadata-1.6.1.tar.gz", hash = "sha256:0505dd08068cfec00f53a74a0ad927676d7757da81b7436a6eefe4c7cf75c545"},
 ]
 isort = [
-    {file = "isort-5.3.0-py3-none-any.whl", hash = "sha256:723de131d9ae9d2561844f0ee525ce33a396a11bcda57174f036ed5ab3d6a122"},
-    {file = "isort-5.3.0.tar.gz", hash = "sha256:cdca22530d093ed16983ba52c41560fa0219d1b958e44fd2ae2995dcc7b785be"},
+    {file = "isort-5.4.0-py3-none-any.whl", hash = "sha256:32bd1190ae0a5cc45f10fbe3fb85918b17441f8e51db51e67453972e9acb6c96"},
+    {file = "isort-5.4.0.tar.gz", hash = "sha256:2426f423a77bfb639ec67cf13ef7cb96f3521772b8831f099a777aae0c9ba571"},
 ]
 mccabe = [
     {file = "mccabe-0.6.1-py2.py3-none-any.whl", hash = "sha256:ab8a6258860da4b6677da4bd2fe5dc2c659cff31b3ee4f7f5d64e79735b80d42"},
diff --git a/pyproject.toml b/pyproject.toml
index 0c340f0..01803b2 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -15,7 +15,7 @@ Shapely = "^1.6.4"
 pyshp = "^2.1.0"
 
 [tool.poetry.dev-dependencies]
-isort = "^5.3"
+isort = "^5.4"
 flake8 = "^3.8.3"
 black = { version = "==19.10b0", allow-prereleases = true }
 coveralls = "^2.1.1"