diff --git a/brittany.cabal b/brittany.cabal
index 731166f..334dacd 100644
--- a/brittany.cabal
+++ b/brittany.cabal
@@ -107,7 +107,7 @@ library {
     , butcher >=1.3.1 && <1.4
     , yaml >=0.8.18 && <0.12
     , aeson >=1.0.1.0 && <1.5
-    , extra >=1.4.10 && <1.7
+    , extra >=1.4.10 && <1.8
     , uniplate >=1.6.12 && <1.7
     , strict >=0.3.2 && <0.4
     , monad-memo >=0.4.1 && <0.6