diff --git a/pkgs/development/libraries/physics/hepmc3/default.nix b/pkgs/development/libraries/physics/hepmc3/default.nix
index 3116c4d36bba..d8aff555e556 100644
--- a/pkgs/development/libraries/physics/hepmc3/default.nix
+++ b/pkgs/development/libraries/physics/hepmc3/default.nix
@@ -2,11 +2,11 @@
 
 stdenv.mkDerivation rec {
   pname = "hepmc3";
-  version = "3.1.1";
+  version = "3.1.2";
 
   src = fetchurl {
     url = "http://hepmc.web.cern.ch/hepmc/releases/HepMC3-${version}.tar.gz";
-    sha256 = "1fs8ha5issls886g03azpwamry1k633zjrcx51v7g7vg9nbckjrg";
+    sha256 = "1izcldnjbyn6myr7nv7b4jivf2vmdi64ng9gk1vjh998755hfcs1";
   };
 
   buildInputs = [ cmake root ];