diff --git a/pkgs/applications/networking/browsers/lagrange/default.nix b/pkgs/applications/networking/browsers/lagrange/default.nix
index 80a741f76382..b0147b551828 100644
--- a/pkgs/applications/networking/browsers/lagrange/default.nix
+++ b/pkgs/applications/networking/browsers/lagrange/default.nix
@@ -22,13 +22,13 @@
 
 stdenv.mkDerivation (finalAttrs: {
   pname = "lagrange";
-  version = "1.18.4";
+  version = "1.18.5";
 
   src = fetchFromGitHub {
     owner = "skyjake";
     repo = "lagrange";
-    rev = "v${finalAttrs.version}";
-    hash = "sha256-Bty2TRL5blduhucYmI6x3RZVdgrY0/7Dtm5kgQ2N3ec=";
+    tag = "v${finalAttrs.version}";
+    hash = "sha256-NlnT8dGh05dDjSMxjaBnW7x/KjLgf2Ma0nbaiR7MpiY=";
   };
 
   nativeBuildInputs = [