diff --git a/ChangeLog.md b/ChangeLog.md
--- a/ChangeLog.md
+++ b/ChangeLog.md
@@ -1,3 +1,8 @@
+## 1.4.0
+
+* Upgrade to classy-prelude 1.4.0
+* Upgrade to conduit 1.3.0
+
 ## 1.0.0
 
 * Support for mono-traversable-1.0.0
diff --git a/classy-prelude-conduit.cabal b/classy-prelude-conduit.cabal
--- a/classy-prelude-conduit.cabal
+++ b/classy-prelude-conduit.cabal
@@ -2,10 +2,10 @@
 --
 -- see: https://github.com/sol/hpack
 --
--- hash: 994df2ba5b04a61e7b5e57d5e82b85b947b973407dd26a11bfd402ec4fab3e67
+-- hash: eac13775f728db935eb0e7d72b5aa866d73d53534db56878f47a54f6f22b1d83
 
 name:           classy-prelude-conduit
-version:        1.3.1
+version:        1.4.0
 synopsis:       classy-prelude together with conduit functions
 description:    See docs and README at <http://www.stackage.org/package/classy-prelude-conduit>
 category:       Control, Prelude
@@ -31,11 +31,10 @@
       src
   ghc-options: -Wall -fno-warn-orphans
   build-depends:
-      base >=4 && <5
+      base >=4.9 && <5
     , bytestring
-    , classy-prelude >=1.3.1 && <1.3.2
-    , conduit >=1.0 && <1.3
-    , conduit-combinators >=0.2.8
+    , classy-prelude >=1.4.0 && <1.4.1
+    , conduit >=1.3 && <1.4
     , monad-control
     , resourcet
     , transformers
@@ -53,7 +52,7 @@
       test
   build-depends:
       QuickCheck
-    , base >=4 && <5
+    , base >=4.9 && <5
     , bytestring
     , classy-prelude-conduit
     , conduit