diff --git a/demo-common/Demo/Common/API.hs b/demo-common/Demo/Common/API.hs
index 3f2ce86f..926b554e 100644
--- a/demo-common/Demo/Common/API.hs
+++ b/demo-common/Demo/Common/API.hs
@@ -1,4 +1,5 @@
 {-# LANGUAGE OverloadedStrings #-}
+{-# OPTIONS_GHC -Wno-orphans #-}
 
 module Demo.Common.API (
     -- * Greeter
diff --git a/interop/Interop/API.hs b/interop/Interop/API.hs
index fa2c5907..ddf5b489 100644
--- a/interop/Interop/API.hs
+++ b/interop/Interop/API.hs
@@ -1,4 +1,5 @@
 {-# LANGUAGE OverloadedStrings #-}
+{-# OPTIONS_GHC -Wno-orphans #-}
 
 module Interop.API (
     -- * TestService
diff --git a/test-grapesy/Test/Driver/Dialogue/Execution.hs b/test-grapesy/Test/Driver/Dialogue/Execution.hs
index 3acd9e04..1f4d5505 100644
--- a/test-grapesy/Test/Driver/Dialogue/Execution.hs
+++ b/test-grapesy/Test/Driver/Dialogue/Execution.hs
@@ -1,4 +1,5 @@
 {-# LANGUAGE OverloadedStrings #-}
+{-# OPTIONS_GHC -Wno-orphans #-}
 
 module Test.Driver.Dialogue.Execution (
     execGlobalSteps
diff --git a/test-grapesy/Test/Sanity/Interop.hs b/test-grapesy/Test/Sanity/Interop.hs
index 3804325a..622591ed 100644
--- a/test-grapesy/Test/Sanity/Interop.hs
+++ b/test-grapesy/Test/Sanity/Interop.hs
@@ -1,5 +1,6 @@
 {-# LANGUAGE OverloadedLabels  #-}
 {-# LANGUAGE OverloadedStrings #-}
+{-# OPTIONS_GHC -Wno-orphans #-}
 
 -- | Test functionality required by the gRPC interop tests
 module Test.Sanity.Interop (tests) where
diff --git a/test-grapesy/Test/Sanity/StreamingType/NonStreaming.hs b/test-grapesy/Test/Sanity/StreamingType/NonStreaming.hs
index b9dcb323..131c0f30 100644
--- a/test-grapesy/Test/Sanity/StreamingType/NonStreaming.hs
+++ b/test-grapesy/Test/Sanity/StreamingType/NonStreaming.hs
@@ -1,5 +1,6 @@
 {-# LANGUAGE CPP               #-}
 {-# LANGUAGE OverloadedStrings #-}
+{-# OPTIONS_GHC -Wno-orphans #-}
 
 module Test.Sanity.StreamingType.NonStreaming (tests) where
 
diff --git a/test-stress/Test/Stress/Server/API.hs b/test-stress/Test/Stress/Server/API.hs
index d17b971f..aab3e12b 100644
--- a/test-stress/Test/Stress/Server/API.hs
+++ b/test-stress/Test/Stress/Server/API.hs
@@ -1,3 +1,5 @@
+{-# OPTIONS_GHC -Wno-orphans #-}
+
 module Test.Stress.Server.API (
     ManyShortLived
   ) where