diff --git a/pkgs/development/libraries/haskell/yesod/default.nix b/pkgs/development/libraries/haskell/yesod/default.nix
index 96f3ebbd9a5..dc412ca9a9e 100644
--- a/pkgs/development/libraries/haskell/yesod/default.nix
+++ b/pkgs/development/libraries/haskell/yesod/default.nix
@@ -12,8 +12,8 @@
 
 cabal.mkDerivation (self: {
   pname = "yesod";
-  version = "1.1.8";
-  sha256 = "0ygcsrq8nf1jvksig72r3i13qz1d3hgh5476fy6l4wl33idk6jb1";
+  version = "1.1.8.1";
+  sha256 = "01s9b0pqqj7q760vm62ni95k5fqwccw8l6531kqav2vnfvi08ric";
   isLibrary = true;
   isExecutable = true;
   buildDepends = [