diff --git a/pkgs/development/libraries/haskell/wreq/default.nix b/pkgs/development/libraries/haskell/wreq/default.nix
index 55270cbb2102..a5112b8fa3d9 100644
--- a/pkgs/development/libraries/haskell/wreq/default.nix
+++ b/pkgs/development/libraries/haskell/wreq/default.nix
@@ -21,12 +21,12 @@ cabal.mkDerivation (self: {
     temporary testFramework testFrameworkHunit text
   ];
   doCheck = false;
+  patches = [ ./lens-4.5.patch ];
   meta = {
     homepage = "http://www.serpentine.com/wreq";
     description = "An easy-to-use HTTP client library";
     license = self.stdenv.lib.licenses.bsd3;
     platforms = self.ghc.meta.platforms;
     maintainers = with self.stdenv.lib.maintainers; [ ocharles ];
-    broken = true;
   };
 })
diff --git a/pkgs/development/libraries/haskell/wreq/lens-4.5.patch b/pkgs/development/libraries/haskell/wreq/lens-4.5.patch
new file mode 100644
index 000000000000..b47e5647bf1d
--- /dev/null
+++ b/pkgs/development/libraries/haskell/wreq/lens-4.5.patch
@@ -0,0 +1,15 @@
+diff --git a/Network/Wreq/Lens/Machinery.hs b/Network/Wreq/Lens/Machinery.hs
+index 782d965..0c97d27 100644
+--- a/Network/Wreq/Lens/Machinery.hs
++++ b/Network/Wreq/Lens/Machinery.hs
+@@ -13,8 +13,8 @@ import Language.Haskell.TH.Syntax (Dec, Name, Q, mkName, nameBase)
+ defaultRules :: LensRules
+ defaultRules = lensRules
+
+-fieldName :: (String -> String) -> [Name] -> Name -> [DefName]
+-fieldName f _ name = [TopName . mkName . f . nameBase $ name]
++fieldName :: (String -> String) -> Name -> [Name] -> Name -> [DefName]
++fieldName f _ _ name = [TopName . mkName . f . nameBase $ name]
+
+ makeLenses :: Name -> Q [Dec]
+ makeLenses = makeLensesWith (defaultRules & lensField .~ fieldName id)