diff --git a/adjunctions.cabal b/adjunctions.cabal
--- a/adjunctions.cabal
+++ b/adjunctions.cabal
@@ -1,6 +1,6 @@
 name:          adjunctions
 category:      Data Structures, Adjunctions
-version:       2.0.0.2
+version:       2.0.0.3
 license:       BSD3
 cabal-version: >= 1.6
 license-file:  LICENSE
@@ -34,7 +34,7 @@
     contravariant >= 0.1.2 && < 0.2,
     distributive >= 0.2 && < 0.3,
     mtl >= 2.0.1.0 && < 2.1,
-    semigroups >= 0.5 && < 0.6,
+    semigroups >= 0.6 && < 0.7,
     semigroupoids >= 1.2.2 && < 1.3.0,
     transformers >= 0.2.0 && < 0.3,
     void >= 0.5.1 && < 0.6,