diff --git a/pkgs/tools/system/plan9port/default.nix b/pkgs/tools/system/plan9port/default.nix
index 7e4ce71ec547..74e3e11fbb5d 100644
--- a/pkgs/tools/system/plan9port/default.nix
+++ b/pkgs/tools/system/plan9port/default.nix
@@ -14,7 +14,7 @@
 
 stdenv.mkDerivation {
   pname = "plan9port";
-  version = "0.pre+date=2021-10-19";
+  version = "2021-10-19";
 
   src =  fetchFromGitHub {
     owner = "9fans";