diff --git a/pkgs/by-name/la/lagrange/package.nix b/pkgs/by-name/la/lagrange/package.nix
index 476f746b0105..05ef747aeddc 100644
--- a/pkgs/by-name/la/lagrange/package.nix
+++ b/pkgs/by-name/la/lagrange/package.nix
@@ -22,13 +22,13 @@
 
 stdenv.mkDerivation (finalAttrs: {
   pname = "lagrange";
-  version = "1.18.5";
+  version = "1.18.6";
 
   src = fetchFromGitHub {
     owner = "skyjake";
     repo = "lagrange";
     tag = "v${finalAttrs.version}";
-    hash = "sha256-NlnT8dGh05dDjSMxjaBnW7x/KjLgf2Ma0nbaiR7MpiY=";
+    hash = "sha256-KII0Rnas0H3iODEn89DD5BN96Ao7Aq0cTC4uhtuvNt4=";
   };
 
   nativeBuildInputs = [