diff --git a/pkgs/development/libraries/haskell/vacuumCairo/default.nix b/pkgs/development/libraries/haskell/vacuum-cairo/default.nix
similarity index 100%
rename from pkgs/development/libraries/haskell/vacuumCairo/default.nix
rename to pkgs/development/libraries/haskell/vacuum-cairo/default.nix
diff --git a/pkgs/development/libraries/haskell/vacuum/default.nix b/pkgs/development/libraries/haskell/vacuum/default.nix
index 05e1448ddb1..315d2612f13 100644
--- a/pkgs/development/libraries/haskell/vacuum/default.nix
+++ b/pkgs/development/libraries/haskell/vacuum/default.nix
@@ -2,8 +2,8 @@
 
 cabal.mkDerivation (self : {
   pname = "vacuum";
-  version = "0.0.91";
-  sha256 = "9240ec35b39d60928a73469893adf1d2aa742b9a781dbc6dcdaa54e96d9bf1af";
+  version = "0.0.94";
+  sha256 = "7056dfa38a9f579ee897d2980938fd484ddfa93c472014ad7ea5a5cd9100bfad";
   propagatedBuildInputs = [ghcPaths haskellSrcMeta];
   meta = {
     description = "Extract graph representations of ghc heap values";
diff --git a/pkgs/top-level/haskell-packages.nix b/pkgs/top-level/haskell-packages.nix
index 978fbace5dc..fcb082d3350 100644
--- a/pkgs/top-level/haskell-packages.nix
+++ b/pkgs/top-level/haskell-packages.nix
@@ -327,7 +327,7 @@ rec {
     inherit cabal ghcPaths haskellSrcMeta;
   };
 
-  vacuumCairo = import ../development/libraries/haskell/vacuumCairo {
+  vacuumCairo = import ../development/libraries/haskell/vacuum-cairo {
     inherit cabal vacuum gtk2hs parallel strictConcurrency;
   };