Add transformers to bench deps

diff --git a/hmacaroons.cabal b/hmacaroons.cabal
index 8c6f4101e0299aeede027822f86ead94e4188f71..3f0bd89eb46eca1aef374b1144d8efbe54ac53f5 100644 (file)
--- a/hmacaroons.cabal
+++ b/hmacaroons.cabal
@@ -86,6 +86,7 @@ benchmark bench
                   byteable >= 0.1 && <0.2,
                   cereal >= 0.4,
                   cryptohash >=0.11 && <0.12,
+                  transformers >= 0.3,
                   -- cipher-aes >=0.2 && <0.3,
                   either >=4.4,
                   hex >= 0.1,