diff --git a/pkgs/development/libraries/haskell/hashtables/default.nix b/pkgs/development/libraries/haskell/hashtables/default.nix
index 809b0cefbf79..ece171abe35a 100644
--- a/pkgs/development/libraries/haskell/hashtables/default.nix
+++ b/pkgs/development/libraries/haskell/hashtables/default.nix
@@ -2,8 +2,8 @@
 
 cabal.mkDerivation (self: {
   pname = "hashtables";
-  version = "1.0.0.0";
-  sha256 = "1i7hf7cfj1gqkb4h00a4frflxw3af7rdd1h0pdlv18clinsk6668";
+  version = "1.0.1.0";
+  sha256 = "0a2cfm649smryxfkv61yd8vjl1wyly468xa1l4jb50jxzyyw42z5";
   buildDepends = [ hashable primitive vector ];
   meta = {
     homepage = "http://github.com/gregorycollins/hashtables";