Allow aeson-2.1

Author: phadej

tree-diff.cabal

@@ -1,6 +1,7 @@
 cabal-version:      2.2
 name:               tree-diff
 version:            0.2.1.1
+x-revision:         1
 synopsis:           Diffing of (expression) trees.
 category:           Data, Testing
 description:
@@ -94,7 +95,7 @@ library
     , time        ^>=1.4 || ^>=1.5.0.1 || ^>=1.6.0.1 || ^>=1.8.0.2 || ^>=1.9.3 || ^>=1.10 || ^>=1.11 || ^>=1.12
 
   build-depends:
-    , aeson                 ^>=1.4.6.0 || ^>=1.5.6.0 || ^>=2.0.0.0
+    , aeson                 ^>=1.4.6.0 || ^>=1.5.6.0 || ^>=2.0.0.0 || ^>=2.1.0.0
     , ansi-terminal         >=0.10       && <0.12
     , ansi-wl-pprint        ^>=0.6.8.2
     , base-compat           ^>=0.10.5 || ^>=0.11.0 || ^>=0.12