diff --git a/pkgs/development/libraries/haskell/lens/4.0.nix b/pkgs/development/libraries/haskell/lens/4.0.1.nix
similarity index 94%
rename from pkgs/development/libraries/haskell/lens/4.0.nix
rename to pkgs/development/libraries/haskell/lens/4.0.1.nix
index 9046558c22d7..d921dbe1cbba 100644
--- a/pkgs/development/libraries/haskell/lens/4.0.nix
+++ b/pkgs/development/libraries/haskell/lens/4.0.1.nix
@@ -10,8 +10,8 @@
 
 cabal.mkDerivation (self: {
   pname = "lens";
-  version = "4.0";
-  sha256 = "1mrpbwnj1k2my71lm0ajxsx5r44sz372gfxn78vz4182yv3bmla1";
+  version = "4.0.1";
+  sha256 = "1dm4gdpyd7kndf3zaikjqa1gkc7y7wzfnyhhk3xyhjxa5hn5rj75";
   buildDepends = [
     aeson bifunctors comonad constraints contravariant distributive
     exceptions filepath hashable mtl parallel primitive profunctors
diff --git a/pkgs/top-level/haskell-packages.nix b/pkgs/top-level/haskell-packages.nix
index f14e7150ba81..1a404240d48f 100644
--- a/pkgs/top-level/haskell-packages.nix
+++ b/pkgs/top-level/haskell-packages.nix
@@ -1535,7 +1535,9 @@ let result = let callPackage = x : y : modifyPrio (newScope result.finalReturn x
   leksahServer = callPackage ../development/libraries/haskell/leksah/leksah-server.nix {};
 
   lens_3_10_2 = callPackage ../development/libraries/haskell/lens/3.10.2.nix {};
-  lens_4_0 = callPackage ../development/libraries/haskell/lens/4.0.nix {};
+  lens_4_0_1 = callPackage ../development/libraries/haskell/lens/4.0.1.nix {
+    aeson = self.aeson_0_7_0_0;
+  };
   lens = self.lens_3_10_2;
 
   lensAeson = callPackage ../development/libraries/haskell/lens-aeson {};