diff --git a/pkgs/development/libraries/haskell/rest-snap/default.nix b/pkgs/development/libraries/haskell/rest-snap/default.nix
index efb4f8e1fedc..ac584ae48448 100644
--- a/pkgs/development/libraries/haskell/rest-snap/default.nix
+++ b/pkgs/development/libraries/haskell/rest-snap/default.nix
@@ -6,8 +6,8 @@
 
 cabal.mkDerivation (self: {
   pname = "rest-snap";
-  version = "0.1.17.14";
-  sha256 = "0fd6d85gzp9mr7y7bgfk9wscrhrych9q7cssps8m5l03n83d8asp";
+  version = "0.1.17.16";
+  sha256 = "02dh2wjhaabg2aabsf7gl5w65kqpb3jigawwh9n2dr4hz6jhvwia";
   buildDepends = [
     caseInsensitive restCore safe snapCore unorderedContainers
     uriEncode utf8String
@@ -19,3 +19,4 @@ cabal.mkDerivation (self: {
     maintainers = with self.stdenv.lib.maintainers; [ aycanirican ];
   };
 })
+
diff --git a/pkgs/development/libraries/haskell/rest-wai/default.nix b/pkgs/development/libraries/haskell/rest-wai/default.nix
index f986237426cf..761519a99e2b 100644
--- a/pkgs/development/libraries/haskell/rest-wai/default.nix
+++ b/pkgs/development/libraries/haskell/rest-wai/default.nix
@@ -1,16 +1,16 @@
 # This file was auto-generated by cabal2nix. Please do NOT edit manually!
 
 { cabal, caseInsensitive, httpTypes, mimeTypes, mtl, restCore, text
-, unorderedContainers, utf8String, wai
+, unorderedContainers, wai
 }:
 
 cabal.mkDerivation (self: {
   pname = "rest-wai";
-  version = "0.1.0.4";
-  sha256 = "1pxjf0fmsfiywr81zl5xbl6si0x74a7zmz6d5vqv5pvxmpgwgcbg";
+  version = "0.1.0.6";
+  sha256 = "1pawc1msv8vc43jzq4ynirwv6k7l7bfrh8r6q8m2vk1rnl6zsbxz";
   buildDepends = [
     caseInsensitive httpTypes mimeTypes mtl restCore text
-    unorderedContainers utf8String wai
+    unorderedContainers wai
   ];
   meta = {
     description = "Rest driver for WAI applications";
@@ -19,3 +19,4 @@ cabal.mkDerivation (self: {
     maintainers = with self.stdenv.lib.maintainers; [ aycanirican ];
   };
 })
+