diff --git a/hnix.cabal b/hnix.cabal
--- a/hnix.cabal
+++ b/hnix.cabal
@@ -1,6 +1,6 @@
 cabal-version:  2.2
 name:           hnix
-version:        0.14.0.7
+version:        0.14.0.8
 synopsis:       Haskell implementation of the Nix language
 description:    Haskell implementation of the Nix language.
 category:       System, Data, Nix
diff --git a/src/Nix/Json.hs b/src/Nix/Json.hs
--- a/src/Nix/Json.hs
+++ b/src/Nix/Json.hs
@@ -9,6 +9,8 @@
 #if MIN_VERSION_aeson(2,0,0)
 import qualified Data.Aeson.Key                as AKM
 import qualified Data.Aeson.KeyMap             as AKM
+#else
+import           Nix.Expr.Types
 #endif
 import qualified Data.Vector                   as V
 import           Nix.Atoms