diff --git a/pkgs/development/libraries/haskell/snap/core.nix b/pkgs/development/libraries/haskell/snap/core.nix
index 4cc036ef0801..5baa0c9d82b5 100644
--- a/pkgs/development/libraries/haskell/snap/core.nix
+++ b/pkgs/development/libraries/haskell/snap/core.nix
@@ -6,8 +6,8 @@
 
 cabal.mkDerivation (self: {
   pname = "snap-core";
-  version = "0.5.3.1";
-  sha256 = "0qwlcak1hi4cqyhnks7qqf4zq0rw2486paf0mlasyzb6ba0pwl6m";
+  version = "0.5.4";
+  sha256 = "0v6lsb60s3w96rqpp9ky8nd660zja8asw02vx1562nvd19k65jbb";
   buildDepends = [
     attoparsec attoparsecEnumerator blazeBuilder bytestringMmap
     bytestringNums caseInsensitive deepseq dlist enumerator
diff --git a/pkgs/top-level/haskell-packages.nix b/pkgs/top-level/haskell-packages.nix
index 934ec4c0b695..7aea4664ef47 100644
--- a/pkgs/top-level/haskell-packages.nix
+++ b/pkgs/top-level/haskell-packages.nix
@@ -1030,9 +1030,7 @@ let result = let callPackage = x : y : modifyPrio (newScope result.final x y);
 
   smallcheck = callPackage ../development/libraries/haskell/smallcheck {};
 
-  snapCore = callPackage ../development/libraries/haskell/snap/core.nix {
-    caseInsensitive = self.caseInsensitive_0_3;
-  };
+  snapCore = callPackage ../development/libraries/haskell/snap/core.nix {};
 
   snapServer = callPackage ../development/libraries/haskell/snap/server.nix {
     vectorAlgorithms = self.vectorAlgorithms_0_4;