diff --git a/pkgs/development/python-modules/pytest/default.nix b/pkgs/development/python-modules/pytest/default.nix
index 1ddf52a33bd5..6088d78bba5e 100644
--- a/pkgs/development/python-modules/pytest/default.nix
+++ b/pkgs/development/python-modules/pytest/default.nix
@@ -3,7 +3,7 @@
 , atomicwrites, mock, writeText, pathlib2, wcwidth, packaging, isPyPy, python
 }:
 buildPythonPackage rec {
-  version = "5.1.0";
+  version = "5.2.1";
   pname = "pytest";
 
   disabled = !isPy3k;
@@ -15,7 +15,7 @@ buildPythonPackage rec {
 
   src = fetchPypi {
     inherit pname version;
-    sha256 = "3805d095f1ea279b9870c3eeae5dddf8a81b10952c8835cd628cf1875b0ef031";
+    sha256 = "ca563435f4941d0cb34767301c27bc65c510cb82e90b9ecf9cb52dc2c63caaa0";
   };
 
   checkInputs = [ hypothesis mock ];