diff --git a/pkgs/development/libraries/physics/pythia/default.nix b/pkgs/development/libraries/physics/pythia/default.nix
index a0daa91a1b54..52138a8d50ea 100644
--- a/pkgs/development/libraries/physics/pythia/default.nix
+++ b/pkgs/development/libraries/physics/pythia/default.nix
@@ -2,11 +2,11 @@
 
 stdenv.mkDerivation rec {
   pname = "pythia";
-  version = "8.310";
+  version = "8.311";
 
   src = fetchurl {
     url = "https://pythia.org/download/pythia83/pythia${builtins.replaceStrings ["."] [""] version}.tgz";
-    sha256 = "sha256-kMgRq+ej0v/b+bSuq1HPbgpai++04++oBvPVucMR4ic=";
+    sha256 = "sha256-J4LV5CnBVDxnN1r+VH/UxMoHIDCd6wCPfbeGJtx9FGQ=";
   };
 
   nativeBuildInputs = [ rsync ]