diff --git a/pkgs/development/libraries/fmt/default.nix b/pkgs/development/libraries/fmt/default.nix
index 3fee016175bc..efc403f2f214 100644
--- a/pkgs/development/libraries/fmt/default.nix
+++ b/pkgs/development/libraries/fmt/default.nix
@@ -49,7 +49,7 @@ in
   };
 
   fmt_8 = generic {
-    version = "8.0.1";
-    sha256 = "1mnvxqsan034d2jiqnw2yvkljl7lwvhakmj5bscwp1fpkn655bbw";
+    version = "8.1.1";
+    sha256 = "sha256-leb2800CwdZMJRWF5b1Y9ocK0jXpOX/nwo95icDf308=";
   };
 }