diff --git a/pkgs/development/python-modules/plac/default.nix b/pkgs/development/python-modules/plac/default.nix
index 0622e41fa7e..77bcf6cf4fc 100644
--- a/pkgs/development/python-modules/plac/default.nix
+++ b/pkgs/development/python-modules/plac/default.nix
@@ -5,11 +5,11 @@
 }:
 buildPythonPackage rec {
   pname = "plac";
-  version = "1.1.0";
+  version = "1.1.3";
 
   src = fetchPypi {
     inherit pname version;
-    sha256 = "10f0blwxn7k2qvd0vs4300jxb8n9r7jhngf9bx9bfxia8akwy5kw";
+    sha256 = "398cb947c60c4c25e275e1f1dadf027e7096858fb260b8ece3b33bcff90d985f";
   };
 
   checkPhase = ''