diff --git a/pkgs/development/libraries/haskell/json-rpc/default.nix b/pkgs/development/libraries/haskell/json-rpc/default.nix
index 1062a0b35239..c7e5c3373c5e 100644
--- a/pkgs/development/libraries/haskell/json-rpc/default.nix
+++ b/pkgs/development/libraries/haskell/json-rpc/default.nix
@@ -7,8 +7,8 @@
 
 cabal.mkDerivation (self: {
   pname = "json-rpc";
-  version = "0.2.0.2";
-  sha256 = "00ha6hjg9ccwa48ab5ibnkiiri7ki3rv7ms2h9qbwr30lxyb0r88";
+  version = "0.2.1.1";
+  sha256 = "0h6dkb1rgd6qxzcxvqvgwilmibkdbqpjvflijwf54fx2z687fjld";
   buildDepends = [
     aeson async conduit conduitExtra deepseq hashable mtl stm
     stmConduit text unorderedContainers