diff --git a/pkgs/top-level/haskell-packages.nix b/pkgs/top-level/haskell-packages.nix
index b7bc9ff9397..864aac89745 100644
--- a/pkgs/top-level/haskell-packages.nix
+++ b/pkgs/top-level/haskell-packages.nix
@@ -634,7 +634,9 @@ let result = let callPackage = x : y : modifyPrio (newScope result.final x y);
 
   Graphalyze = callPackage ../development/libraries/haskell/Graphalyze {};
 
-  graphviz = callPackage ../development/libraries/haskell/graphviz {};
+  graphviz = callPackage ../development/libraries/haskell/graphviz {
+    fgl = self.fgl_5_4_2_4;
+  };
 
   hakyll = callPackage ../development/libraries/haskell/hakyll {
     hamlet = self.hamlet_0_8_2_1;