diff --git a/pkgs/applications/misc/heimer/default.nix b/pkgs/applications/misc/heimer/default.nix
index 444ee7ab5232..079077524789 100644
--- a/pkgs/applications/misc/heimer/default.nix
+++ b/pkgs/applications/misc/heimer/default.nix
@@ -2,13 +2,13 @@
 
 mkDerivation rec {
   pname = "heimer";
-  version = "1.21.0";
+  version = "2.0.0";
 
   src = fetchFromGitHub {
     owner = "juzzlin";
     repo = pname;
     rev = version;
-    sha256 = "03q3jn0j0cydw2mxfv7236lv4w9fh9slha0mphj33mk2f97b9hl6";
+    sha256 = "0lxypgwgl64d4sw9kn0ncyik3whpq8iif0sbvi4r5kasx6wgs4qz";
   };
 
   nativeBuildInputs = [ cmake ];