1 files changed, 2 insertions, 2 deletions
diff --git a/pkgs/development/haskell-modules/configuration-ghc-head.nix b/pkgs/development/haskell-modules/configuration-ghc-head.nix
index c8b6f33d847..55fd891ba2a 100644
--- a/pkgs/development/haskell-modules/configuration-ghc-head.nix
+++ b/pkgs/development/haskell-modules/configuration-ghc-head.nix
@@ -66,10 +66,10 @@ self: super: {
 
   # Setup: At least the following dependencies are missing: base <4.8
   hspec-expectations = overrideCabal super.hspec-expectations (drv: {
-    patchPhase = "sed -i -e 's|base < 4.8|base|' hspec-expectations.cabal";
+    postPatch = "sed -i -e 's|base < 4.8|base|' hspec-expectations.cabal";
   });
   utf8-string = overrideCabal super.utf8-string (drv: {
-    patchPhase = "sed -i -e 's|base >= 3 && < 4.8|base|' utf8-string.cabal";
+    postPatch = "sed -i -e 's|base >= 3 && < 4.8|base|' utf8-string.cabal";
   });
 
   # bos/attoparsec#92