diff --git a/pkgs/applications/emulators/fceux/default.nix b/pkgs/applications/emulators/fceux/default.nix
index 0225f76a2aafe..1c6663eeaa262 100644
--- a/pkgs/applications/emulators/fceux/default.nix
+++ b/pkgs/applications/emulators/fceux/default.nix
@@ -12,13 +12,13 @@
 
 stdenv.mkDerivation (finalAttrs: {
   pname = "fceux";
-  version = "2.6.4";
+  version = "2.6.6";
 
   src = fetchFromGitHub {
     owner = "TASEmulators";
     repo = "fceux";
-    rev = "fceux-${finalAttrs.version}";
-    hash = "sha256-Q6r/iBlmi0z40+U6OLZCahS0io4IBBGZMP1mJH7szRM=";
+    rev = "v${finalAttrs.version}";
+    hash = "sha256-Wp23oLapMqQtL2DCkm2xX1vodtEr/XNSOErf3nrFRQs=";
   };
 
   nativeBuildInputs = [