diff --git a/pkgs/tools/security/monsoon/default.nix b/pkgs/tools/security/monsoon/default.nix
index 7f34e83d32e..8ac0c834ee0 100644
--- a/pkgs/tools/security/monsoon/default.nix
+++ b/pkgs/tools/security/monsoon/default.nix
@@ -11,7 +11,7 @@ buildGoModule rec {
   src = fetchFromGitHub {
     owner = "RedTeamPentesting";
     repo = "monsoon";
-    rev = "refs/tagsv${version}";
+    rev = "refs/tags/v${version}";
     hash = "sha256-7cfy8dYhiReFVz10wui3qqxlXOX7wheREkvSnj2KyOw=";
   };