diff --git a/pkgs/development/libraries/haskell/warp/default.nix b/pkgs/development/libraries/haskell/warp/default.nix
index dd6bf66b676b..135d57f0024c 100644
--- a/pkgs/development/libraries/haskell/warp/default.nix
+++ b/pkgs/development/libraries/haskell/warp/default.nix
@@ -5,8 +5,8 @@
 
 cabal.mkDerivation (self: {
   pname = "warp";
-  version = "1.3.7.2";
-  sha256 = "06cwc0lmzgna939svdw7v5s822safkfy3wd4n21f9ml20iskzqm6";
+  version = "1.3.7.3";
+  sha256 = "0k68dqnz0j9x5698sr2yqcxh1bd3ppv2qh2dn4919lrlpzn3xd93";
   buildDepends = [
     blazeBuilder blazeBuilderConduit caseInsensitive conduit hashable
     httpTypes liftedBase network networkConduit simpleSendfile