diff --git a/pkgs/applications/misc/tiramisu/default.nix b/pkgs/applications/misc/tiramisu/default.nix
index 8624bded6641..4a123be328c9 100644
--- a/pkgs/applications/misc/tiramisu/default.nix
+++ b/pkgs/applications/misc/tiramisu/default.nix
@@ -2,13 +2,15 @@
 
 stdenv.mkDerivation rec {
   pname = "tiramisu";
-  version = "2.0.20211107";
+  # FIXME: once a newer release in upstream is available
+  version = "2.0-unstable-2023-03-29";
 
   src = fetchFromGitHub {
     owner = "Sweets";
-    repo = pname;
-    rev = version;
-    sha256 = "1n1x1ybbwbanibw7b90k7v4cadagl41li17hz2l8s2sapacvq3mw";
+    repo = "tiramisu";
+    # FIXME: use the current HEAD commit as upstream has no releases since 2021
+    rev = "5dddd83abd695bfa15640047a97a08ff0a8d9f9b";
+    hash = "sha256-owYk/YFwJbqO6/dbGKPE8SnmmH4KvH+o6uWptqQtpfI=";
   };
 
   buildInputs = [ glib ];