diff --git a/pkgs/applications/science/electronics/ngspice/default.nix b/pkgs/applications/science/electronics/ngspice/default.nix
index ee7c0a5844d..114a2eea85f 100644
--- a/pkgs/applications/science/electronics/ngspice/default.nix
+++ b/pkgs/applications/science/electronics/ngspice/default.nix
@@ -1,11 +1,11 @@
 {stdenv, fetchurl, readline, bison, flex, libX11, libICE, libXaw, libXext}:
 
 stdenv.mkDerivation {
-  name = "ngspice-26";
+  name = "ngspice-27";
 
   src = fetchurl {
-    url = "mirror://sourceforge/ngspice/ngspice-26.tar.gz";
-    sha256 = "51e230c8b720802d93747bc580c0a29d1fb530f3dd06f213b6a700ca9a4d0108";
+    url = "mirror://sourceforge/ngspice/ngspice-27.tar.gz";
+    sha256 = "15862npsy5sj56z5yd1qiv3y0fgicrzj7wwn8hbcy89fgbawf20c";
   };
 
   buildInputs = [ readline libX11 flex bison libICE libXaw libXext ];