diff --git a/pkgs/by-name/tr/trealla/package.nix b/pkgs/by-name/tr/trealla/package.nix
index 7762173414c9..8ba9ebb7957d 100644
--- a/pkgs/by-name/tr/trealla/package.nix
+++ b/pkgs/by-name/tr/trealla/package.nix
@@ -17,13 +17,13 @@
 assert lib.elem lineEditingLibrary [ "isocline" "readline" ];
 stdenv.mkDerivation (finalAttrs: {
   pname = "trealla";
-  version = "2.26.9";
+  version = "2.27.15";
 
   src = fetchFromGitHub {
     owner = "trealla-prolog";
     repo = "trealla";
     rev = "v${finalAttrs.version}";
-    hash = "sha256-p2fntQKaVdgM94b2EBfTdUpdsEUlbnma+6arP/f+FQs=";
+    hash = "sha256-b6OIp0UTBGl463wgwVCyTbC3Id0mgEIUnla+U3qv738=";
   };
 
   postPatch = ''
@@ -68,7 +68,9 @@ stdenv.mkDerivation (finalAttrs: {
     "test"
   ] ++ lib.optional checkLeaks "leaks";
 
-  passthru.updateScript = gitUpdater { };
+  passthru.updateScript = gitUpdater {
+    rev-prefix = "v";
+  };
 
   meta = {
     homepage = "https://trealla-prolog.github.io/trealla/";