diff --git a/semantic-diff.cabal b/semantic-diff.cabal
index 78576287f..7ad03cc48 100644
--- a/semantic-diff.cabal
+++ b/semantic-diff.cabal
@@ -51,7 +51,6 @@ library
                      , filepath
                      , mtl
                      , pointed
-                     , semigroupoids
                      , semigroups
                      , text >= 1.2.1.3
                      , text-icu