diff --git a/pkgs/development/tools/haskell/hlint/default.nix b/pkgs/development/tools/haskell/hlint/default.nix
index e6d99fdebfb..de09d232b6c 100644
--- a/pkgs/development/tools/haskell/hlint/default.nix
+++ b/pkgs/development/tools/haskell/hlint/default.nix
@@ -6,8 +6,8 @@
 
 cabal.mkDerivation (self: {
   pname = "hlint";
-  version = "1.9.8";
-  sha256 = "0n89iinn669jcxnh3k76cja1z78bnl84rmak37xgqcbvwd46dr34";
+  version = "1.9.9";
+  sha256 = "193ls1pfycdl8ifq09y2acbhy2hjb2p8f79gjn13ziaycgfz9ygr";
   isLibrary = true;
   isExecutable = true;
   buildDepends = [