diff --git a/CHANGELOG.markdown b/CHANGELOG.markdown
--- a/CHANGELOG.markdown
+++ b/CHANGELOG.markdown
@@ -1,3 +1,7 @@
+4.2.2
+-----
+* `semigroupoids` 5 support
+
 4.2.1
 ---
 * Add `liftRift` and `lowerRift`
diff --git a/kan-extensions.cabal b/kan-extensions.cabal
--- a/kan-extensions.cabal
+++ b/kan-extensions.cabal
@@ -1,6 +1,6 @@
 name:          kan-extensions
 category:      Data Structures, Monads, Comonads, Functors
-version:       4.2.1
+version:       4.2.2
 license:       BSD3
 cabal-version: >= 1.6
 license-file:  LICENSE
@@ -42,14 +42,14 @@
   build-depends:
     adjunctions   >= 4.2     && < 5,
     array         >= 0.3.0.2 && < 0.6,
-    base          >= 4       && < 5,
+    base          >= 4.4     && < 5,
     comonad       >= 4       && < 5,
     containers    >= 0.4     && < 0.6,
     contravariant >= 1       && < 2,
     distributive  >= 0.2.2   && < 1,
     free          >= 4       && < 5,
     mtl           >= 2.0.1   && < 2.3,
-    semigroupoids >= 4       && < 5,
+    semigroupoids >= 4       && < 6,
     tagged        >= 0.7.2   && < 1,
     transformers  >= 0.2     && < 0.5