diff --git a/pkgs/development/python-modules/plotly/default.nix b/pkgs/development/python-modules/plotly/default.nix
index c12857759dd..9bf22b939d1 100644
--- a/pkgs/development/python-modules/plotly/default.nix
+++ b/pkgs/development/python-modules/plotly/default.nix
@@ -11,11 +11,11 @@
 
 buildPythonPackage rec {
   pname = "plotly";
-  version = "4.1.1";
+  version = "4.2.1";
 
   src = fetchPypi {
     inherit pname version;
-    sha256 = "06gjvicl5k0qn8xz2gnqd4akxvd81n16gwssr7gwlnmdic5da30g";
+    sha256 = "6650ddb4da3aa94dcaa32e0779e611c6b17f371b5250ffdbf5ece6d66ba4483b";
   };
 
   propagatedBuildInputs = [