diff --git a/pkgs/development/libraries/haskell/ghc-events/default.nix b/pkgs/development/libraries/haskell/ghc-events/default.nix
index fa6ae059e845..4827b7494845 100644
--- a/pkgs/development/libraries/haskell/ghc-events/default.nix
+++ b/pkgs/development/libraries/haskell/ghc-events/default.nix
@@ -7,6 +7,9 @@ cabal.mkDerivation (self: {
   isLibrary = true;
   isExecutable = true;
   buildDepends = [ binary mtl ];
+  patchPhase = ''
+    sed -i -e 's|mtl *>=.*$|mtl,|' ghc-events.cabal
+  '';
   noHaddock = true;
   meta = {
     description = "Library and tool for parsing .eventlog files from GHC";