diff --git a/pkgs/by-name/em/emulsion/package.nix b/pkgs/by-name/em/emulsion/package.nix
index 87d013db2d7a..9664ba732692 100644
--- a/pkgs/by-name/em/emulsion/package.nix
+++ b/pkgs/by-name/em/emulsion/package.nix
@@ -34,16 +34,16 @@ let
 in
 rustPlatform.buildRustPackage (finalAttrs: {
   pname = "emulsion";
-  version = "11.0";
+  version = "12.3";
 
   src = fetchFromGitHub {
     owner = "ArturKovacs";
     repo = "emulsion";
     rev = "v${finalAttrs.version}";
-    sha256 = "sha256-0t+MUZu1cvkJSL9Ly9kblH8fMr05KuRpOo+JDn/VUc8=";
+    sha256 = "sha256-+C4YB5usNKfNydyEyIvaScnjK0h/PKN1x8gnt7Lz2kQ=";
   };
 
-  cargoHash = "sha256-1s5kCUxn4t1A40QHuygGKaqphLmcl+EYfx++RZQmL00=";
+  cargoHash = "sha256-i+lSUSgq98iT9OzsdkZgRidLszc6mJJA1b1Jfq+yk5s=";
 
   nativeBuildInputs = [
     installShellFiles