diff --git a/pkgs/development/libraries/haskell/wai-logger/default.nix b/pkgs/development/libraries/haskell/wai-logger/default.nix
index 895856d17b5..dc00b9525eb 100644
--- a/pkgs/development/libraries/haskell/wai-logger/default.nix
+++ b/pkgs/development/libraries/haskell/wai-logger/default.nix
@@ -4,8 +4,8 @@
 
 cabal.mkDerivation (self: {
   pname = "wai-logger";
-  version = "2.1.0";
-  sha256 = "1vb2nih78qw7ha1v67hsyyplarxxg5zh82pmh85sdbdykp5cwz0c";
+  version = "2.1.1";
+  sha256 = "1cdl5nglb8jghi0yndpabraihgh681m5q1j77wsxzckxisga73j8";
   buildDepends = [
     blazeBuilder byteorder caseInsensitive fastLogger httpTypes network
     unixTime wai