diff --git a/poetry.lock b/poetry.lock
index 1555a4b..0a9f714 100644
--- a/poetry.lock
+++ b/poetry.lock
@@ -245,7 +245,7 @@ python-versions = "*"
 
 [[package]]
 name = "isort"
-version = "5.9.2"
+version = "5.9.3"
 description = "A Python utility / library to sort Python imports."
 category = "dev"
 optional = false
@@ -665,7 +665,7 @@ python-versions = "*"
 [metadata]
 lock-version = "1.1"
 python-versions = "^3.9"
-content-hash = "df8c7018760022e29ac050769f7ed34ccaecd4a6ede2074ced97389c92448140"
+content-hash = "463d7b65c815df84b69b11276c533a1e4c8b91a3f85958337c24dd4ea64d7629"
 
 [metadata.files]
 appdirs = [
@@ -784,8 +784,8 @@ iniconfig = [
     {file = "iniconfig-1.1.1.tar.gz", hash = "sha256:bc3af051d7d14b2ee5ef9969666def0cd1a000e121eaea580d4a313df4b37f32"},
 ]
 isort = [
-    {file = "isort-5.9.2-py3-none-any.whl", hash = "sha256:eed17b53c3e7912425579853d078a0832820f023191561fcee9d7cae424e0813"},
-    {file = "isort-5.9.2.tar.gz", hash = "sha256:f65ce5bd4cbc6abdfbe29afc2f0245538ab358c14590912df638033f157d555e"},
+    {file = "isort-5.9.3-py3-none-any.whl", hash = "sha256:e17d6e2b81095c9db0a03a8025a957f334d6ea30b26f9ec70805411e5c7c81f2"},
+    {file = "isort-5.9.3.tar.gz", hash = "sha256:9c2ea1e62d871267b78307fe511c0838ba0da28698c5732d54e2790bf3ba9899"},
 ]
 lazy-object-proxy = [
     {file = "lazy-object-proxy-1.6.0.tar.gz", hash = "sha256:489000d368377571c6f982fba6497f2aa13c6d1facc40660963da62f5c379726"},
diff --git a/pyproject.toml b/pyproject.toml
index f132c47..5dfc836 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -42,7 +42,7 @@ biopython = "^1.79"
 bandit = "^1.7.0"
 black = {version = "^21.6b0", allow-prereleases = true}
 darglint = "^1.8.0"
-isort = {extras = ["colors"], version = "^5.9.1"}
+isort = {extras = ["colors"], version = "^5.9.3"}
 mypy = "^0.910"
 pre-commit = "^2.13.0"
 pydocstyle = "^6.1.1"