diff --git a/poetry.lock b/poetry.lock
index 4a66123..e50f4b8 100644
--- a/poetry.lock
+++ b/poetry.lock
@@ -185,7 +185,7 @@ description = "A Python utility / library to sort Python imports."
 name = "isort"
 optional = false
 python-versions = ">=3.6,<4.0"
-version = "5.3.0"
+version = "5.4.2"
 
 [package.extras]
 colors = ["colorama (>=0.4.3,<0.5.0)"]
@@ -333,7 +333,7 @@ docs = ["sphinx", "jaraco.packaging (>=3.2)", "rst.linker (>=1.9)"]
 testing = ["jaraco.itertools", "func-timeout"]
 
 [metadata]
-content-hash = "35f18abf9fd7fcdb480b6ca151a1ce235bc2bbba97a4a4ba43d2661cc0ad00eb"
+content-hash = "c5ad6ffa071159f000c63d08dbf7f1fec8d908fa86bbe3bd8ced3ff2e1433893"
 python-versions = "^3.6"
 
 [metadata.files]
@@ -452,8 +452,8 @@ importlib-metadata = [
     {file = "importlib_metadata-1.6.0.tar.gz", hash = "sha256:34513a8a0c4962bc66d35b359558fd8a5e10cd472d37aec5f66858addef32c1e"},
 ]
 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-5.4.2-py3-none-any.whl", hash = "sha256:60a1b97e33f61243d12647aaaa3e6cc6778f5eb9f42997650f1cc975b6008750"},
+    {file = "isort-5.4.2.tar.gz", hash = "sha256:d488ba1c5a2db721669cc180180d5acf84ebdc5af7827f7aaeaa75f73cf0e2b8"},
 ]
 markdown2 = [
     {file = "markdown2-2.3.9-py2.py3-none-any.whl", hash = "sha256:e6b401ec80b75e76a6b3dbb2c8ade513156fa55fa6c30b9640a1abf6184a07c8"},
diff --git a/pyproject.toml b/pyproject.toml
index ab1f016..764eba9 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -26,7 +26,7 @@ cffi = "^1.0.0"
 refract = "==0.4.0"
 
 [tool.poetry.dev-dependencies]
-isort = "^5.3"
+isort = "^5.4"
 flake8 = "^3.8.3"
 black = { version = "==19.10b0", allow-prereleases = true }
 coveralls = "^2.1.2"