diff --git a/pkgs/development/libraries/physics/herwig/default.nix b/pkgs/development/libraries/physics/herwig/default.nix
index f3ba8a4a6ff..ce6ea4c56a8 100644
--- a/pkgs/development/libraries/physics/herwig/default.nix
+++ b/pkgs/development/libraries/physics/herwig/default.nix
@@ -2,11 +2,11 @@
 
 stdenv.mkDerivation rec {
   name = "herwig-${version}";
-  version = "7.1.2";
+  version = "7.1.3";
 
   src = fetchurl {
     url = "http://www.hepforge.org/archive/herwig/Herwig-${version}.tar.bz2";
-    sha256 = "0wr2mmmf5rlvcc6xgdagafm6vb5g6ifvrjc7kd86gs9jip32p29i";
+    sha256 = "1iq1h5ap86729c4pfkswzfh0l2v20fyvqsb15c35g0407l54wfqm";
   };
 
   nativeBuildInputs = [ autoconf automake libtool ];
diff --git a/pkgs/development/libraries/physics/thepeg/default.nix b/pkgs/development/libraries/physics/thepeg/default.nix
index 0a8ee8f393c..0a84fe20da7 100644
--- a/pkgs/development/libraries/physics/thepeg/default.nix
+++ b/pkgs/development/libraries/physics/thepeg/default.nix
@@ -2,11 +2,11 @@
 
 stdenv.mkDerivation rec {
   name = "thepeg-${version}";
-  version = "2.1.2";
+  version = "2.1.3";
 
   src = fetchurl {
     url = "http://www.hepforge.org/archive/thepeg/ThePEG-${version}.tar.bz2";
-    sha256 = "0jbz70ax05w3lpjvz71fnfz35rcjp0jry1nyjpa662714xd6f3va";
+    sha256 = "030wpk78mwb56iph5iqmblsxgzpydsa25bbkv07bihihfm8gds0n";
   };
 
   buildInputs = [ boost fastjet gsl hepmc lhapdf rivet zlib ];