diff --git a/pkgs/development/python-modules/slackclient/default.nix b/pkgs/development/python-modules/slackclient/default.nix
index 2a09ebe534b0..a53a43ce80c5 100644
--- a/pkgs/development/python-modules/slackclient/default.nix
+++ b/pkgs/development/python-modules/slackclient/default.nix
@@ -22,7 +22,7 @@
 
 buildPythonPackage rec {
   pname = "slackclient";
-  version = "3.27.2";
+  version = "3.28.0";
   format = "setuptools";
 
   disabled = pythonOlder "3.6";
@@ -31,7 +31,7 @@ buildPythonPackage rec {
     owner = "slackapi";
     repo = "python-slack-sdk";
     rev = "refs/tags/v${version}";
-    hash = "sha256-1I08OUseiwCN9vUd56f9IFzCSB9kGjTLojyWm2dIimE=";
+    hash = "sha256-rsJLjqP1XT1JkFz3iQovF58XdkmVcL+jfjiiI9SqonE=";
   };
 
   propagatedBuildInputs = [