diff --git a/pkgs/by-name/lr/lrs/package.nix b/pkgs/by-name/lr/lrs/package.nix
index 8715a6a49694..51f51296f9f5 100644
--- a/pkgs/by-name/lr/lrs/package.nix
+++ b/pkgs/by-name/lr/lrs/package.nix
@@ -7,11 +7,11 @@
 
 stdenv.mkDerivation {
   pname = "lrs";
-  version = "7.2";
+  version = "7.3";
 
   src = fetchurl {
-    url = "http://cgm.cs.mcgill.ca/~avis/C/lrslib/archive/lrslib-072.tar.gz";
-    sha256 = "1w1jsnfgny8cihndr5gfm99pvwp48qsvxkqfsi2q87gd3m57aj7w";
+    url = "http://cgm.cs.mcgill.ca/~avis/C/lrslib/archive/lrslib-073.tar.gz";
+    sha256 = "sha256-xJpOvYVhg0c9HVpieF/N/hBX1dZx1LlvOhJQ6xr+ToM=";
   };
 
   buildInputs = [ gmp ];