diff --git a/pkgs/development/libraries/physics/hepmc3/default.nix b/pkgs/development/libraries/physics/hepmc3/default.nix
index 3379e3d04d29..f0caef03348e 100644
--- a/pkgs/development/libraries/physics/hepmc3/default.nix
+++ b/pkgs/development/libraries/physics/hepmc3/default.nix
@@ -16,11 +16,11 @@ in
 
 stdenv.mkDerivation rec {
   pname = "hepmc3";
-  version = "3.2.5";
+  version = "3.2.6";
 
   src = fetchurl {
     url = "http://hepmc.web.cern.ch/hepmc/releases/HepMC3-${version}.tar.gz";
-    sha256 = "sha256-zQ91yA91VJxZzCqCns52Acd96Xyypat1eQysjh1YUDI=";
+    sha256 = "sha256-JI87WzbddzhEy+c9UfYIkUWDNLmGsll1TFnb9Lvx1SU=";
   };
 
   nativeBuildInputs = [