diff --git a/pkgs/development/python-modules/attrs/default.nix b/pkgs/development/python-modules/attrs/default.nix
index 0fe8241c2159..e3691a5dc328 100644
--- a/pkgs/development/python-modules/attrs/default.nix
+++ b/pkgs/development/python-modules/attrs/default.nix
@@ -3,11 +3,11 @@
 
 buildPythonPackage rec {
   pname = "attrs";
-  version = "18.2.0";
+  version = "19.3.0";
 
   src = fetchPypi {
     inherit pname version;
-    sha256 = "10cbf6e27dbce8c30807caf056c8eb50917e0eaafe86347671b57254006c3e69";
+    sha256 = "f7b7ce16570fe9965acd6d30101a28f62fb4a7f9e926b3bbc9b61f8b04247e72";
   };
 
   # macOS needs clang for testing