diff --git a/app/Workflow.hs b/app/Workflow.hs
index 07aec96..d356d95 100644
--- a/app/Workflow.hs
+++ b/app/Workflow.hs
@@ -9,7 +9,7 @@ module Workflow where
   ----------------Imports----------------
 
   import Data.YAML hiding (Scalar, Mapping, Sequence, encode)
-  import Data.Aeson(encode, ToJSON, ToJSONKey (toJSONKey))
+  import Data.Aeson(encode, ToJSON (toJSON), ToJSONKey (toJSONKey))
   import Control.Applicative hiding (empty)
   import GHC.Generics (Generic)
   import Data.Map
@@ -20,7 +20,6 @@ module Workflow where
   import qualified Data.Text.Lazy.Encoding as TL
   import qualified Data.Text.Lazy as TL
   import Debug.Trace (trace)
-  import Data.Yaml (ToJSON(toJSON))
   import Data.Aeson.Types (toJSONKeyText)
   
   ---------------------------------------
diff --git a/workflow-visualiser.cabal b/workflow-visualiser.cabal
index 5c5f306..efbd5a0 100644
--- a/workflow-visualiser.cabal
+++ b/workflow-visualiser.cabal
@@ -33,7 +33,6 @@ executable workflow-visualiser
     -- LANGUAGE extensions used by modules in this package.
     -- other-extensions:
     build-depends:    base ^>=4.16.3.0,
-                      yaml >= 0.11.11.0,
                       HsYAML,
                       aeson >= 2.1.2.0,
                       bytestring,