diff --git a/pkgs/by-name/li/libmamba/package.nix b/pkgs/by-name/li/libmamba/package.nix
index c1ed853b834f..c3b8c302b84c 100644
--- a/pkgs/by-name/li/libmamba/package.nix
+++ b/pkgs/by-name/li/libmamba/package.nix
@@ -21,13 +21,13 @@
 
 stdenv.mkDerivation (finalAttrs: {
   pname = "libmamba";
-  version = "2.0.5";
+  version = "2.1.0";
 
   src = fetchFromGitHub {
     owner = "mamba-org";
     repo = "mamba";
-    rev = "libmamba-${finalAttrs.version}";
-    hash = "sha256-o5shAmsplJS2WZ4HhAt1U27KqUheVxZTkjlyxR7EYxI=";
+    tag = finalAttrs.version;
+    hash = "sha256-7YR3ToPz80I9d1pRNiEaoIacVyaz2mqzdm0h5WGSb2g=";
   };
 
   nativeBuildInputs = [