diff --git a/servant-foreign/servant-foreign.cabal b/servant-foreign/servant-foreign.cabal
index b4e9794d..94b36d40 100644
--- a/servant-foreign/servant-foreign.cabal
+++ b/servant-foreign/servant-foreign.cabal
@@ -70,6 +70,10 @@ test-suite spec
                    , hspec >= 2.1.8
                    , servant
                    , servant-foreign
+  if !impl(ghc >= 8.0)
+    build-depends:
+                     semigroups >= 0.16 && < 0.19
+
   default-language:  Haskell2010
   default-extensions:  ConstraintKinds
                      , DataKinds
@@ -83,3 +87,4 @@ test-suite spec
                      , UndecidableInstances
                      , OverloadedStrings
                      , PolyKinds
+