diff --git a/ermine.cabal b/ermine.cabal
index f84c8af..cf730ad 100644
--- a/ermine.cabal
+++ b/ermine.cabal
@@ -48,6 +48,8 @@ source-repository head
   type: git
   location: git://github.com/ekmett/ermine.git
 
+-- TODO we can't use if to disable this by default on windows due to
+-- https://github.com/haskell/cabal/issues/2429
 flag ekg
   manual: True
   default: True
@@ -188,8 +190,6 @@ library
     base                      >= 4,
     bifunctors                >= 4.1.1,
     binary                    >= 0.7.1,
-    -- TODO remove blaze-builder when trifecta >=1.5.2
-    blaze-markup              < 0.6.3,
     bound                     >= 1.0.3,
     bytes                     >= 0.11,
     bytestring                >= 0.10,
@@ -225,7 +225,7 @@ library
     time                      >= 1.4,
     transformers              >= 0.3,
     transformers-compat       >= 0.4,
-    trifecta                  >= 1.4.1,
+    trifecta                  >= 1.5.1.3,
     unordered-containers      >= 0.2.3,
     utf8-string               >= 0.3.7,
     vector                    >= 0.10,