diff --git a/reploy.cabal b/reploy.cabal
index 157a11a..990d89b 100644
--- a/reploy.cabal
+++ b/reploy.cabal
@@ -12,7 +12,7 @@ executable reploy
   main-is:          reploy.hs
   other-modules:    Types, Utils, FormatOpts
   build-depends:    base == 4.*
-                  , aeson
+                  , aeson ^>= 2.1
                   , bytestring
                   , containers
                   , data-default