diff --git a/library/Potoki/Core/Transform.hs b/library/Potoki/Core/Transform.hs
--- a/library/Potoki/Core/Transform.hs
+++ b/library/Potoki/Core/Transform.hs
@@ -14,7 +14,6 @@
 import qualified Potoki.Core.Fetch as A
 import qualified Potoki.Core.Consume as C
 import qualified Potoki.Core.Produce as D
-import qualified Deque as B
 
 
 instance Category Transform where
diff --git a/potoki-core.cabal b/potoki-core.cabal
--- a/potoki-core.cabal
+++ b/potoki-core.cabal
@@ -1,7 +1,7 @@
 name:
   potoki-core
 version:
-  1.4
+  1.4.1
 synopsis:
   Low-level components of "potoki"
 description:
@@ -52,8 +52,6 @@
     Potoki.Core.Transform.Types
     Potoki.Core.Prelude
   build-depends:
-    -- 
-    deque >=0.2 && <0.3,
     -- 
     stm >=2.4 && <3,
     --