diff --git a/dev-haskell/basement/basement-0.0.12.ebuild b/dev-haskell/basement/basement-0.0.12.ebuild
index c5b40f0d69182..6ba5c0feea659 100644
--- a/dev-haskell/basement/basement-0.0.12.ebuild
+++ b/dev-haskell/basement/basement-0.0.12.ebuild
@@ -16,7 +16,7 @@ LICENSE="BSD"
 SLOT="0/${PV}"
 KEYWORDS="amd64 ~arm64 ~ppc64 ~riscv ~x86"
 
-RDEPEND=">=dev-lang/ghc-8.4.3:=
+RDEPEND=">=dev-lang/ghc-8.4.3:= <dev-lang/ghc-9.1:=
 "
 DEPEND="${RDEPEND}
 	>=dev-haskell/cabal-2.2.0.1