diff --git a/haskell-src-meta.cabal b/haskell-src-meta.cabal
index 5c45b07..c1f3376 100644
--- a/haskell-src-meta.cabal
+++ b/haskell-src-meta.cabal
@@ -18,7 +18,7 @@ extra-source-files: ChangeLog README.md examples/*.hs
 
 library
   build-depends:   base >= 4.6 && < 5,
-                   haskell-src-exts >= 1.18 && < 1.21,
+                   haskell-src-exts >= 1.18 && < 1.22,
                    pretty >= 1.0 && < 1.2,
                    syb >= 0.1 && < 0.8,
                    template-haskell >= 2.8 && < 2.15,
@@ -41,7 +41,7 @@ test-suite unit
   build-depends:
     HUnit                >= 1.2  && < 1.7,
     base                 >= 4.5  && < 5,
-    haskell-src-exts     >= 1.17 && < 1.21,
+    haskell-src-exts     >= 1.17 && < 1.22,
     haskell-src-meta,
     pretty               >= 1.0  && < 1.2,
     template-haskell     >= 2.7  && < 2.15,
diff --git a/src/Language/Haskell/Meta/Syntax/Translate.hs b/src/Language/Haskell/Meta/Syntax/Translate.hs
index 0dba4f5..aa95cff 100644
--- a/src/Language/Haskell/Meta/Syntax/Translate.hs
+++ b/src/Language/Haskell/Meta/Syntax/Translate.hs
@@ -314,11 +314,13 @@ instance ToName TyVarBndr where
   toName (PlainTV n) = n
   toName (KindedTV n _) = n
 
+#if !MIN_VERSION_haskell_src_exts(1,21,0)
 instance ToType (Hs.Kind l) where
   toType (Hs.KindStar _) = StarT
   toType (Hs.KindFn _ k1 k2) = toType k1 .->. toType k2
   toType (Hs.KindParen _ kp) = toType kp
   toType (Hs.KindVar _ n) = VarT (toName n)
+#endif
 
 toKind :: Hs.Kind l -> Kind
 toKind = toType