diff --git a/poetry.lock b/poetry.lock
index 75b44cff..06894beb 100644
--- a/poetry.lock
+++ b/poetry.lock
@@ -104,7 +104,7 @@ stevedore = ">=1.20.0"
 
 [[package]]
 name = "black"
-version = "21.4b0"
+version = "21.4b1"
 description = "The uncompromising code formatter."
 category = "dev"
 optional = false
@@ -114,7 +114,7 @@ python-versions = ">=3.6.2"
 appdirs = "*"
 click = ">=7.1.2"
 mypy-extensions = ">=0.4.3"
-pathspec = ">=0.6,<1"
+pathspec = ">=0.8.1,<1"
 regex = ">=2020.1.8"
 toml = ">=0.10.1"
 
@@ -865,7 +865,7 @@ multidict = ">=4.0"
 [metadata]
 lock-version = "1.1"
 python-versions = "^3.8"
-content-hash = "53bdac3dc233c69597a45548e01f0432a778e63b36e228749a277f8031996fde"
+content-hash = "e368a8a899f35a2109374a5318eaa1f4f767830a39552fab093ee66d0dd86407"
 
 [metadata.files]
 aiohttp = [
@@ -940,8 +940,8 @@ bandit = [
     {file = "bandit-1.7.0.tar.gz", hash = "sha256:8a4c7415254d75df8ff3c3b15cfe9042ecee628a1e40b44c15a98890fbfc2608"},
 ]
 black = [
-    {file = "black-21.4b0-py3-none-any.whl", hash = "sha256:2db7040bbbbaa46247bfcc05c6efdebd7ebe50c1c3ca745ca6e0f6776438c96c"},
-    {file = "black-21.4b0.tar.gz", hash = "sha256:915d916c48646dbe8040d5265cff7111421a60a3dfe7f7e07273176a57c24a34"},
+    {file = "black-21.4b1-py3-none-any.whl", hash = "sha256:c9601dc863779db2fb1bf18b345bbfa2bb868463123cde6a7eff44b59e4ef739"},
+    {file = "black-21.4b1.tar.gz", hash = "sha256:20d326de75d13be6290925a95c94a9f368aca2f71cb7b753a938a5ae20f34a37"},
 ]
 blacken-docs = [
     {file = "blacken_docs-1.10.0-py2.py3-none-any.whl", hash = "sha256:149197a0b17e83121fc10aca9eda1417728fdccebde930a6722f97d87ed30f4b"},
diff --git a/pyproject.toml b/pyproject.toml
index 94ab3ddd..aad970bb 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -31,7 +31,7 @@ yarl = ">=1.6.0"
 
 [tool.poetry.dev-dependencies]
 aresponses = "^2.1.4"
-black = "^21.4b0"
+black = "^21.4b1"
 blacken-docs = "^1.10.0"
 coverage = {version = "^5.5", extras = ["toml"]}
 flake8 = "^3.9.1"