diff --git a/pkgs/development/libraries/haskell/implicit/default.nix b/pkgs/development/libraries/haskell/implicit/default.nix
index 39013aff28f6..a2fd8cd438e4 100644
--- a/pkgs/development/libraries/haskell/implicit/default.nix
+++ b/pkgs/development/libraries/haskell/implicit/default.nix
@@ -1,8 +1,8 @@
 # This file was auto-generated by cabal2nix. Please do NOT edit manually!
 
 { cabal, blazeBuilder, blazeMarkup, blazeSvg, deepseq, filepath
-, JuicyPixels, mtl, NumInstances, optparseApplicative, parallel
-, parsec, storableEndian, text, unorderedContainers, vectorSpace
+, JuicyPixels, mtl, optparseApplicative, parallel, parsec
+, storableEndian, text, unorderedContainers, vectorSpace
 }:
 
 cabal.mkDerivation (self: {
@@ -13,8 +13,8 @@ cabal.mkDerivation (self: {
   isExecutable = true;
   buildDepends = [
     blazeBuilder blazeMarkup blazeSvg deepseq filepath JuicyPixels mtl
-    NumInstances optparseApplicative parallel parsec storableEndian
-    text unorderedContainers vectorSpace
+    optparseApplicative parallel parsec storableEndian text
+    unorderedContainers vectorSpace
   ];
   meta = {
     homepage = "https://github.com/colah/ImplicitCAD";