diff --git a/hledger-lib/package.yaml b/hledger-lib/package.yaml
index 570f459a9..34dccb57d 100644
--- a/hledger-lib/package.yaml
+++ b/hledger-lib/package.yaml
@@ -62,7 +62,6 @@ dependencies:
 - pretty-show >=1.6.4
 - regex-tdfa
 - safe >=0.2
-- semigroups
 - split >=0.1
 - text >=1.2
 - time >=1.5