diff --git a/pkgs/development/libraries/haskell/fay-base/default.nix b/pkgs/development/libraries/haskell/fay-base/default.nix
index 53f6fdce41cb..6e9ed4868847 100644
--- a/pkgs/development/libraries/haskell/fay-base/default.nix
+++ b/pkgs/development/libraries/haskell/fay-base/default.nix
@@ -2,8 +2,8 @@
 
 cabal.mkDerivation (self: {
   pname = "fay-base";
-  version = "0.19";
-  sha256 = "03jf1ig3s2dcdd26j3d3iwm9hbiq5f5q5hyg22jdvl7lmvigw36j";
+  version = "0.19.1";
+  sha256 = "1b4v8l3adhcpply9yqk1pc1cgsvqlamvk60rvcb89kw5clrbvr4r";
   buildDepends = [ fay ];
   meta = {
     homepage = "https://github.com/faylang/fay-base";