diff --git a/jsonrpc-conduit.cabal b/jsonrpc-conduit.cabal
--- a/jsonrpc-conduit.cabal
+++ b/jsonrpc-conduit.cabal
@@ -1,5 +1,5 @@
 name:                jsonrpc-conduit
-version:             0.2.6
+version:             0.2.7
 synopsis:            JSON-RPC 2.0 server over a Conduit.
 description:
   @jsonrpc-conduit@ implements the basic building block of a JSON-RPC 2.0 server.
@@ -33,8 +33,8 @@
   exposed-modules:     Data.Conduit.JsonRpc.Methods,
                        Data.Conduit.JsonRpc.Server
   build-depends:       base >=4 && <5,
-                       aeson >=0.7 && <0.9,
-                       attoparsec >=0.11 && <0.13,
+                       aeson >=0.7 && <0.11,
+                       attoparsec >=0.11 && <0.14,
                        bytestring ==0.10.*,
                        conduit >=1.1 && <1.3,
                        conduit-extra >=1.1 && <1.3,
@@ -51,8 +51,8 @@
   other-modules:       Data.Conduit.JsonRpc.Methods,
                        Data.Conduit.JsonRpc.Server
   build-depends:       base >=4 && <5,
-                       aeson >=0.7 && <0.9,
-                       attoparsec >=0.11 && <0.13,
+                       aeson >=0.7 && <0.11,
+                       attoparsec >=0.11 && <0.14,
                        bytestring ==0.10.*,
                        conduit >=1.1 && <1.3,
                        conduit-extra >=1.1 && <1.3,