diff --git a/pkgs/development/python-modules/pytest-black/black-version.patch b/pkgs/development/python-modules/pytest-black/black-version.patch
deleted file mode 100644
index 93bb4180930c..000000000000
--- a/pkgs/development/python-modules/pytest-black/black-version.patch
+++ /dev/null
@@ -1,13 +0,0 @@
-diff --git a/setup.py b/setup.py
-index 5c9ce5f..84b148a 100644
---- a/setup.py
-+++ b/setup.py
-@@ -26,6 +26,6 @@ setup(
-     python_requires=">=2.7",
-     install_requires=[
-         "pytest>=3.5.0",
--        'black==19.3b0; python_version >= "3.6"',
-+        'black; python_version >= "3.6"',
-         "toml",
-     ],
-     use_scm_version=True,
\ No newline at end of file
diff --git a/pkgs/development/python-modules/pytest-black/default.nix b/pkgs/development/python-modules/pytest-black/default.nix
index b129f9eec4b3..1f01e7fb65fd 100644
--- a/pkgs/development/python-modules/pytest-black/default.nix
+++ b/pkgs/development/python-modules/pytest-black/default.nix
@@ -7,14 +7,13 @@
 
 buildPythonPackage rec {
   pname = "pytest-black";
-  version = "0.3.7";
+  version = "0.3.8";
 
   src = fetchPypi {
     inherit pname version;
-    sha256 = "03gwwy1h3qnfh6vpfhgsa5ag53a9sw1g42sc2s8a2hilwb7yrfvm";
+    sha256 = "04lppqydxm0f3f3x0l8hj7v0j6d8syj34jc37yzqwqcyqsnaga81";
   };
 
-  patches = [ ./black-version.patch ];
   nativeBuildInputs = [ setuptools_scm ];
 
   propagatedBuildInputs = [ black pytest toml ];