diff --git a/pkgs/development/tools/haskell/cabal2nix/default.nix b/pkgs/development/tools/haskell/cabal2nix/default.nix
index 72c032342d91..6eac3153009e 100644
--- a/pkgs/development/tools/haskell/cabal2nix/default.nix
+++ b/pkgs/development/tools/haskell/cabal2nix/default.nix
@@ -2,8 +2,8 @@
 
 cabal.mkDerivation (self: {
   pname = "cabal2nix";
-  version = "1.39";
-  sha256 = "0q2kgzjbcrqxml12hncsrkjdwjiq52dp00v6i3qdgiyj460iy60d";
+  version = "1.40";
+  sha256 = "0finmky9lyzg5gs0y95fb0gmzraszljv7l5271185jmhky4wppim";
   isLibrary = false;
   isExecutable = true;
   buildDepends = [ Cabal filepath hackageDb HTTP mtl regexPosix ];