diff --git a/parsley-garnish.cabal b/parsley-garnish.cabal
index 850e9ec..cf68173 100644
--- a/parsley-garnish.cabal
+++ b/parsley-garnish.cabal
@@ -16,6 +16,10 @@ build-type:         Simple
 extra-doc-files:    ChangeLog.md
                     README.md
 cabal-version:      1.18
+tested-with:        GHC == 8.6.5,
+                    GHC == 8.8.4,
+                    GHC == 8.10.5,
+                    GHC == 9.0.1
 
 library
   exposed-modules: