diff --git a/pkgs/development/libraries/tl-expected/default.nix b/pkgs/development/libraries/tl-expected/default.nix
index 79af37f58e6..68550b5ab47 100644
--- a/pkgs/development/libraries/tl-expected/default.nix
+++ b/pkgs/development/libraries/tl-expected/default.nix
@@ -1,15 +1,14 @@
 { lib, stdenv, fetchFromGitHub, cmake }:
 
 stdenv.mkDerivation rec {
-  pname = "tl-expected-unstable";
-  version = "2023-02-15"; # 37 commits ahead of version 1.0.0
+  pname = "tl-expected";
+  version = "1.1.0";
 
   src = fetchFromGitHub {
     owner = "TartanLlama";
     repo = "expected";
-    rev = "9d812f5e3b5bc68023f6e31d29489cdcaacef606";
-    fetchSubmodules = true;
-    hash = "sha256-ZokcGQgHH37nmTMLmxFcun4S1RjXuXb9NfWHet8Fbc4=";
+    rev = "v${version}";
+    hash = "sha256-AuRU8VI5l7Th9fJ5jIc/6mPm0Vqbbt6rY8QCCNDOU50=";
   };
 
   nativeBuildInputs = [ cmake ];