diff --git a/pkgs/development/libraries/physics/herwig/default.nix b/pkgs/development/libraries/physics/herwig/default.nix
index a8655c2dcbe..88a565f3b1b 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 = "7.1.3";
+  version = "7.1.4";
 
   src = fetchurl {
     url = "https://www.hepforge.org/archive/herwig/Herwig-${version}.tar.bz2";
-    sha256 = "1iq1h5ap86729c4pfkswzfh0l2v20fyvqsb15c35g0407l54wfqm";
+    sha256 = "1awr1jz0q873x8bgwiilzklhk1zkgm6slvpychpnvsf9vk05mmdx";
   };
 
   nativeBuildInputs = [ autoconf automake libtool ];
diff --git a/pkgs/development/libraries/physics/thepeg/default.nix b/pkgs/development/libraries/physics/thepeg/default.nix
index feffa5c11d5..63bc3c06e10 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 = "2.1.3";
+  version = "2.1.4";
 
   src = fetchurl {
     url = "https://www.hepforge.org/archive/thepeg/ThePEG-${version}.tar.bz2";
-    sha256 = "030wpk78mwb56iph5iqmblsxgzpydsa25bbkv07bihihfm8gds0n";
+    sha256 = "1x9dfxmsbmzmsxrv3cczfyrnqkxjcpy89v6v7ycysrx9k8qkf320";
   };
 
   buildInputs = [ boost fastjet gsl hepmc lhapdf rivet zlib ];