diff --git a/pkgs/development/libraries/haskell/yaml/default.nix b/pkgs/development/libraries/haskell/yaml/default.nix
index 8e3a3e46f457..e7fac87c3191 100644
--- a/pkgs/development/libraries/haskell/yaml/default.nix
+++ b/pkgs/development/libraries/haskell/yaml/default.nix
@@ -4,8 +4,8 @@
 
 cabal.mkDerivation (self: {
   pname = "yaml";
-  version = "0.8.5.4";
-  sha256 = "0mn1i0whqr9q6vh43x5xa0p4xxckqszhsi62warx1kjvrq4yil6f";
+  version = "0.8.6";
+  sha256 = "0qmbgb2gsqj25hl1blxjjcpk5fp5za9d1vshjs86mpapqvlhr9rn";
   isLibrary = true;
   isExecutable = true;
   buildDepends = [